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Finding the Fourth Proportional to 7,159.53, 9,866.55 and 5,166.52

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Solution

The fourth proportional to 7,159.53, 9,866.55 and 5,166.52 is: 7,119.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,159.53 : 9,866.55 = 5,166.52 : x
  2. Step 2: Convert to fraction form
    7,159.53/9,866.55 = 5,166.52/x
  3. Step 3: Cross multiply
    7,159.53x = 9,866.55 × 5,166.52
  4. Step 4: Simplify right side
    7,159.53x = 50,975,727.91
  5. Step 5: Solve for x
    x = 50,975,727.91/7,159.53
  6. Step 6: Final answer
    x = 7,119.98

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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.