Home / 7,435.80-11,153.70-7,314.30

Finding the Fourth Proportional to 7,435.80, 11,153.70 and 7,314.30

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Solution

The fourth proportional to 7,435.80, 11,153.70 and 7,314.30 is: 10,971.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,435.80 : 11,153.70 = 7,314.30 : x
  2. Step 2: Convert to fraction form
    7,435.80/11,153.70 = 7,314.30/x
  3. Step 3: Cross multiply
    7,435.80x = 11,153.70 × 7,314.30
  4. Step 4: Simplify right side
    7,435.80x = 81,581,507.91
  5. Step 5: Solve for x
    x = 81,581,507.91/7,435.80
  6. Step 6: Final answer
    x = 10,971.45

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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.