Home / 7,705.20-11,557.80-7,340.70

Finding the Fourth Proportional to 7,705.20, 11,557.80 and 7,340.70

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Solution

The fourth proportional to 7,705.20, 11,557.80 and 7,340.70 is: 11,011.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,705.20 : 11,557.80 = 7,340.70 : x
  2. Step 2: Convert to fraction form
    7,705.20/11,557.80 = 7,340.70/x
  3. Step 3: Cross multiply
    7,705.20x = 11,557.80 × 7,340.70
  4. Step 4: Simplify right side
    7,705.20x = 84,842,342.46
  5. Step 5: Solve for x
    x = 84,842,342.46/7,705.20
  6. Step 6: Final answer
    x = 11,011.05

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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.