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Finding the Fourth Proportional to 10,807.67, 14,904.88 and 9,220.04

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Solution

The fourth proportional to 10,807.67, 14,904.88 and 9,220.04 is: 12,715.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,807.67 : 14,904.88 = 9,220.04 : x
  2. Step 2: Convert to fraction form
    10,807.67/14,904.88 = 9,220.04/x
  3. Step 3: Cross multiply
    10,807.67x = 14,904.88 × 9,220.04
  4. Step 4: Simplify right side
    10,807.67x = 137,423,543.70
  5. Step 5: Solve for x
    x = 137,423,543.70/10,807.67
  6. Step 6: Final answer
    x = 12,715.38

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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.