Home / 9,400.28-12,957.16-6,374.40

Finding the Fourth Proportional to 9,400.28, 12,957.16 and 6,374.40

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Solution

The fourth proportional to 9,400.28, 12,957.16 and 6,374.40 is: 8,786.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,400.28 : 12,957.16 = 6,374.40 : x
  2. Step 2: Convert to fraction form
    9,400.28/12,957.16 = 6,374.40/x
  3. Step 3: Cross multiply
    9,400.28x = 12,957.16 × 6,374.40
  4. Step 4: Simplify right side
    9,400.28x = 82,594,120.70
  5. Step 5: Solve for x
    x = 82,594,120.70/9,400.28
  6. Step 6: Final answer
    x = 8,786.35

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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.