Home / 7,547.55-11,321.31-6,426.53

Finding the Fourth Proportional to 7,547.55, 11,321.31 and 6,426.53

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Solution

The fourth proportional to 7,547.55, 11,321.31 and 6,426.53 is: 9,639.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,547.55 : 11,321.31 = 6,426.53 : x
  2. Step 2: Convert to fraction form
    7,547.55/11,321.31 = 6,426.53/x
  3. Step 3: Cross multiply
    7,547.55x = 11,321.31 × 6,426.53
  4. Step 4: Simplify right side
    7,547.55x = 72,756,738.35
  5. Step 5: Solve for x
    x = 72,756,738.35/7,547.55
  6. Step 6: Final answer
    x = 9,639.78

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Double scale
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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.