Home / 8,785.80-12,125.52-5,763.47

Finding the Fourth Proportional to 8,785.80, 12,125.52 and 5,763.47

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Solution

The fourth proportional to 8,785.80, 12,125.52 and 5,763.47 is: 7,954.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,785.80 : 12,125.52 = 5,763.47 : x
  2. Step 2: Convert to fraction form
    8,785.80/12,125.52 = 5,763.47/x
  3. Step 3: Cross multiply
    8,785.80x = 12,125.52 × 5,763.47
  4. Step 4: Simplify right side
    8,785.80x = 69,885,070.75
  5. Step 5: Solve for x
    x = 69,885,070.75/8,785.80
  6. Step 6: Final answer
    x = 7,954.32

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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.