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Finding the Fourth Proportional to 11,641.60, 16,062.08 and 7,446.40

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Solution

The fourth proportional to 11,641.60, 16,062.08 and 7,446.40 is: 10,273.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,641.60 : 16,062.08 = 7,446.40 : x
  2. Step 2: Convert to fraction form
    11,641.60/16,062.08 = 7,446.40/x
  3. Step 3: Cross multiply
    11,641.60x = 16,062.08 × 7,446.40
  4. Step 4: Simplify right side
    11,641.60x = 119,604,672.51
  5. Step 5: Solve for x
    x = 119,604,672.51/11,641.60
  6. Step 6: Final answer
    x = 10,273.90

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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.