Home / 18,279.19-25,225.31-9,895.69

Finding the Fourth Proportional to 18,279.19, 25,225.31 and 9,895.69

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Solution

The fourth proportional to 18,279.19, 25,225.31 and 9,895.69 is: 13,656.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,279.19 : 25,225.31 = 9,895.69 : x
  2. Step 2: Convert to fraction form
    18,279.19/25,225.31 = 9,895.69/x
  3. Step 3: Cross multiply
    18,279.19x = 25,225.31 × 9,895.69
  4. Step 4: Simplify right side
    18,279.19x = 249,621,809.59
  5. Step 5: Solve for x
    x = 249,621,809.59/18,279.19
  6. Step 6: Final answer
    x = 13,656.07

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Half scale
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Double scale
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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.