Home / 7,130.60-10,695.90-5,490.35

Finding the Fourth Proportional to 7,130.60, 10,695.90 and 5,490.35

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Solution

The fourth proportional to 7,130.60, 10,695.90 and 5,490.35 is: 8,235.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,130.60 : 10,695.90 = 5,490.35 : x
  2. Step 2: Convert to fraction form
    7,130.60/10,695.90 = 5,490.35/x
  3. Step 3: Cross multiply
    7,130.60x = 10,695.90 × 5,490.35
  4. Step 4: Simplify right side
    7,130.60x = 58,724,234.57
  5. Step 5: Solve for x
    x = 58,724,234.57/7,130.60
  6. Step 6: Final answer
    x = 8,235.53

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Similar ratio
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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.