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Finding the Fourth Proportional to 10,951.04, 16,430.16 and 4,378.88

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Solution

The fourth proportional to 10,951.04, 16,430.16 and 4,378.88 is: 6,569.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,951.04 : 16,430.16 = 4,378.88 : x
  2. Step 2: Convert to fraction form
    10,951.04/16,430.16 = 4,378.88/x
  3. Step 3: Cross multiply
    10,951.04x = 16,430.16 × 4,378.88
  4. Step 4: Simplify right side
    10,951.04x = 71,945,699.02
  5. Step 5: Solve for x
    x = 71,945,699.02/10,951.04
  6. Step 6: Final answer
    x = 6,569.76

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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.