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Finding the Fourth Proportional to 7,605.53, 10,500.57 and 6,807.47

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Solution

The fourth proportional to 7,605.53, 10,500.57 and 6,807.47 is: 9,398.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,605.53 : 10,500.57 = 6,807.47 : x
  2. Step 2: Convert to fraction form
    7,605.53/10,500.57 = 6,807.47/x
  3. Step 3: Cross multiply
    7,605.53x = 10,500.57 × 6,807.47
  4. Step 4: Simplify right side
    7,605.53x = 71,482,315.26
  5. Step 5: Solve for x
    x = 71,482,315.26/7,605.53
  6. Step 6: Final answer
    x = 9,398.73

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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.