Home / 10,377.14-15,621.08-9,305.50

Finding the Fourth Proportional to 10,377.14, 15,621.08 and 9,305.50

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Solution

The fourth proportional to 10,377.14, 15,621.08 and 9,305.50 is: 14,007.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,377.14 : 15,621.08 = 9,305.50 : x
  2. Step 2: Convert to fraction form
    10,377.14/15,621.08 = 9,305.50/x
  3. Step 3: Cross multiply
    10,377.14x = 15,621.08 × 9,305.50
  4. Step 4: Simplify right side
    10,377.14x = 145,361,959.94
  5. Step 5: Solve for x
    x = 145,361,959.94/10,377.14
  6. Step 6: Final answer
    x = 14,007.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.