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Finding the Fourth Proportional to 7,493.60, 11,240.40 and 4,370.40

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Solution

The fourth proportional to 7,493.60, 11,240.40 and 4,370.40 is: 6,555.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,493.60 : 11,240.40 = 4,370.40 : x
  2. Step 2: Convert to fraction form
    7,493.60/11,240.40 = 4,370.40/x
  3. Step 3: Cross multiply
    7,493.60x = 11,240.40 × 4,370.40
  4. Step 4: Simplify right side
    7,493.60x = 49,125,044.16
  5. Step 5: Solve for x
    x = 49,125,044.16/7,493.60
  6. Step 6: Final answer
    x = 6,555.60

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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.