Home / 7,740.48-11,612.88-6,425.04

Finding the Fourth Proportional to 7,740.48, 11,612.88 and 6,425.04

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Solution

The fourth proportional to 7,740.48, 11,612.88 and 6,425.04 is: 9,639.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,740.48 : 11,612.88 = 6,425.04 : x
  2. Step 2: Convert to fraction form
    7,740.48/11,612.88 = 6,425.04/x
  3. Step 3: Cross multiply
    7,740.48x = 11,612.88 × 6,425.04
  4. Step 4: Simplify right side
    7,740.48x = 74,613,218.52
  5. Step 5: Solve for x
    x = 74,613,218.52/7,740.48
  6. Step 6: Final answer
    x = 9,639.35

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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.