Home / 8,931.87-12,326.11-4,899.05

Finding the Fourth Proportional to 8,931.87, 12,326.11 and 4,899.05

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Solution

The fourth proportional to 8,931.87, 12,326.11 and 4,899.05 is: 6,760.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,931.87 : 12,326.11 = 4,899.05 : x
  2. Step 2: Convert to fraction form
    8,931.87/12,326.11 = 4,899.05/x
  3. Step 3: Cross multiply
    8,931.87x = 12,326.11 × 4,899.05
  4. Step 4: Simplify right side
    8,931.87x = 60,386,216.95
  5. Step 5: Solve for x
    x = 60,386,216.95/8,931.87
  6. Step 6: Final answer
    x = 6,760.76

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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.