Home / 8,854.68-12,219.18-4,875.78

Finding the Fourth Proportional to 8,854.68, 12,219.18 and 4,875.78

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Solution

The fourth proportional to 8,854.68, 12,219.18 and 4,875.78 is: 6,728.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,854.68 : 12,219.18 = 4,875.78 : x
  2. Step 2: Convert to fraction form
    8,854.68/12,219.18 = 4,875.78/x
  3. Step 3: Cross multiply
    8,854.68x = 12,219.18 × 4,875.78
  4. Step 4: Simplify right side
    8,854.68x = 59,578,033.46
  5. Step 5: Solve for x
    x = 59,578,033.46/8,854.68
  6. Step 6: Final answer
    x = 6,728.42

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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.