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Finding the Fourth Proportional to 10,602.19, 15,905.87 and 7,488.28

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Solution

The fourth proportional to 10,602.19, 15,905.87 and 7,488.28 is: 11,234.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,602.19 : 15,905.87 = 7,488.28 : x
  2. Step 2: Convert to fraction form
    10,602.19/15,905.87 = 7,488.28/x
  3. Step 3: Cross multiply
    10,602.19x = 15,905.87 × 7,488.28
  4. Step 4: Simplify right side
    10,602.19x = 119,107,491.23
  5. Step 5: Solve for x
    x = 119,107,491.23/10,602.19
  6. Step 6: Final answer
    x = 11,234.24

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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.