Home / 9,957.20-14,920.67-6,436.40

Finding the Fourth Proportional to 9,957.20, 14,920.67 and 6,436.40

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Solution

The fourth proportional to 9,957.20, 14,920.67 and 6,436.40 is: 9,644.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,957.20 : 14,920.67 = 6,436.40 : x
  2. Step 2: Convert to fraction form
    9,957.20/14,920.67 = 6,436.40/x
  3. Step 3: Cross multiply
    9,957.20x = 14,920.67 × 6,436.40
  4. Step 4: Simplify right side
    9,957.20x = 96,035,341.88
  5. Step 5: Solve for x
    x = 96,035,341.88/9,957.20
  6. Step 6: Final answer
    x = 9,644.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.