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Finding the Fourth Proportional to 10,602.97, 15,907.07 and 7,489.05

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Solution

The fourth proportional to 10,602.97, 15,907.07 and 7,489.05 is: 11,235.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,602.97 : 15,907.07 = 7,489.05 : x
  2. Step 2: Convert to fraction form
    10,602.97/15,907.07 = 7,489.05/x
  3. Step 3: Cross multiply
    10,602.97x = 15,907.07 × 7,489.05
  4. Step 4: Simplify right side
    10,602.97x = 119,128,801.65
  5. Step 5: Solve for x
    x = 119,128,801.65/10,602.97
  6. Step 6: Final answer
    x = 11,235.42

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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.