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Finding the Fourth Proportional to 15,547.30, 23,320.95 and 8,986.30

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Solution

The fourth proportional to 15,547.30, 23,320.95 and 8,986.30 is: 13,479.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,547.30 : 23,320.95 = 8,986.30 : x
  2. Step 2: Convert to fraction form
    15,547.30/23,320.95 = 8,986.30/x
  3. Step 3: Cross multiply
    15,547.30x = 23,320.95 × 8,986.30
  4. Step 4: Simplify right side
    15,547.30x = 209,569,052.99
  5. Step 5: Solve for x
    x = 209,569,052.99/15,547.30
  6. Step 6: Final answer
    x = 13,479.45

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Similar ratio
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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.