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Finding the Fourth Proportional to 15,614.68, 21,547.74 and 9,323.32

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Solution

The fourth proportional to 15,614.68, 21,547.74 and 9,323.32 is: 12,865.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,614.68 : 21,547.74 = 9,323.32 : x
  2. Step 2: Convert to fraction form
    15,614.68/21,547.74 = 9,323.32/x
  3. Step 3: Cross multiply
    15,614.68x = 21,547.74 × 9,323.32
  4. Step 4: Simplify right side
    15,614.68x = 200,896,475.30
  5. Step 5: Solve for x
    x = 200,896,475.30/15,614.68
  6. Step 6: Final answer
    x = 12,865.87

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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.