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Finding the Fourth Proportional to 10,612.04, 15,888.90 and 8,007.08

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Solution

The fourth proportional to 10,612.04, 15,888.90 and 8,007.08 is: 11,988.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,612.04 : 15,888.90 = 8,007.08 : x
  2. Step 2: Convert to fraction form
    10,612.04/15,888.90 = 8,007.08/x
  3. Step 3: Cross multiply
    10,612.04x = 15,888.90 × 8,007.08
  4. Step 4: Simplify right side
    10,612.04x = 127,223,693.41
  5. Step 5: Solve for x
    x = 127,223,693.41/10,612.04
  6. Step 6: Final answer
    x = 11,988.62

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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.