Home / 7,660.64-10,575.72-5,155.92

Finding the Fourth Proportional to 7,660.64, 10,575.72 and 5,155.92

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Solution

The fourth proportional to 7,660.64, 10,575.72 and 5,155.92 is: 7,117.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,660.64 : 10,575.72 = 5,155.92 : x
  2. Step 2: Convert to fraction form
    7,660.64/10,575.72 = 5,155.92/x
  3. Step 3: Cross multiply
    7,660.64x = 10,575.72 × 5,155.92
  4. Step 4: Simplify right side
    7,660.64x = 54,527,566.26
  5. Step 5: Solve for x
    x = 54,527,566.26/7,660.64
  6. Step 6: Final answer
    x = 7,117.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.