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Finding the Fourth Proportional to 13,007.52, 17,950.40 and 7,039.20

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Solution

The fourth proportional to 13,007.52, 17,950.40 and 7,039.20 is: 9,714.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,007.52 : 17,950.40 = 7,039.20 : x
  2. Step 2: Convert to fraction form
    13,007.52/17,950.40 = 7,039.20/x
  3. Step 3: Cross multiply
    13,007.52x = 17,950.40 × 7,039.20
  4. Step 4: Simplify right side
    13,007.52x = 126,356,455.68
  5. Step 5: Solve for x
    x = 126,356,455.68/13,007.52
  6. Step 6: Final answer
    x = 9,714.11

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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.