Home / 8,854.78-12,219.58-4,875.90

Finding the Fourth Proportional to 8,854.78, 12,219.58 and 4,875.90

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Solution

The fourth proportional to 8,854.78, 12,219.58 and 4,875.90 is: 6,728.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,854.78 : 12,219.58 = 4,875.90 : x
  2. Step 2: Convert to fraction form
    8,854.78/12,219.58 = 4,875.90/x
  3. Step 3: Cross multiply
    8,854.78x = 12,219.58 × 4,875.90
  4. Step 4: Simplify right side
    8,854.78x = 59,581,456.22
  5. Step 5: Solve for x
    x = 59,581,456.22/8,854.78
  6. Step 6: Final answer
    x = 6,728.74

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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.