Home / 18,719.10-25,824.07-12,667.19

Finding the Fourth Proportional to 18,719.10, 25,824.07 and 12,667.19

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Solution

The fourth proportional to 18,719.10, 25,824.07 and 12,667.19 is: 17,475.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,719.10 : 25,824.07 = 12,667.19 : x
  2. Step 2: Convert to fraction form
    18,719.10/25,824.07 = 12,667.19/x
  3. Step 3: Cross multiply
    18,719.10x = 25,824.07 × 12,667.19
  4. Step 4: Simplify right side
    18,719.10x = 327,118,401.26
  5. Step 5: Solve for x
    x = 327,118,401.26/18,719.10
  6. Step 6: Final answer
    x = 17,475.11

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.