Home / 13,630.41-18,808.07-7,580.18

Finding the Fourth Proportional to 13,630.41, 18,808.07 and 7,580.18

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Solution

The fourth proportional to 13,630.41, 18,808.07 and 7,580.18 is: 10,459.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,630.41 : 18,808.07 = 7,580.18 : x
  2. Step 2: Convert to fraction form
    13,630.41/18,808.07 = 7,580.18/x
  3. Step 3: Cross multiply
    13,630.41x = 18,808.07 × 7,580.18
  4. Step 4: Simplify right side
    13,630.41x = 142,568,565.17
  5. Step 5: Solve for x
    x = 142,568,565.17/13,630.41
  6. Step 6: Final answer
    x = 10,459.59

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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.