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Finding the Fourth Proportional to 15,119.71, 22,680.08 and 5,259.08

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Solution

The fourth proportional to 15,119.71, 22,680.08 and 5,259.08 is: 7,888.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,119.71 : 22,680.08 = 5,259.08 : x
  2. Step 2: Convert to fraction form
    15,119.71/22,680.08 = 5,259.08/x
  3. Step 3: Cross multiply
    15,119.71x = 22,680.08 × 5,259.08
  4. Step 4: Simplify right side
    15,119.71x = 119,276,235.15
  5. Step 5: Solve for x
    x = 119,276,235.15/15,119.71
  6. Step 6: Final answer
    x = 7,888.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.