Home / 8,926.20-12,318.24-4,947.40

Finding the Fourth Proportional to 8,926.20, 12,318.24 and 4,947.40

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Solution

The fourth proportional to 8,926.20, 12,318.24 and 4,947.40 is: 6,827.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,926.20 : 12,318.24 = 4,947.40 : x
  2. Step 2: Convert to fraction form
    8,926.20/12,318.24 = 4,947.40/x
  3. Step 3: Cross multiply
    8,926.20x = 12,318.24 × 4,947.40
  4. Step 4: Simplify right side
    8,926.20x = 60,943,260.58
  5. Step 5: Solve for x
    x = 60,943,260.58/8,926.20
  6. Step 6: Final answer
    x = 6,827.46

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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.