Home / 8,700.24-12,005.52-4,923.75

Finding the Fourth Proportional to 8,700.24, 12,005.52 and 4,923.75

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Solution

The fourth proportional to 8,700.24, 12,005.52 and 4,923.75 is: 6,794.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,700.24 : 12,005.52 = 4,923.75 : x
  2. Step 2: Convert to fraction form
    8,700.24/12,005.52 = 4,923.75/x
  3. Step 3: Cross multiply
    8,700.24x = 12,005.52 × 4,923.75
  4. Step 4: Simplify right side
    8,700.24x = 59,112,179.10
  5. Step 5: Solve for x
    x = 59,112,179.10/8,700.24
  6. Step 6: Final answer
    x = 6,794.32

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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.