Home / 10,963.74-15,120.03-9,376.35

Finding the Fourth Proportional to 10,963.74, 15,120.03 and 9,376.35

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Solution

The fourth proportional to 10,963.74, 15,120.03 and 9,376.35 is: 12,930.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,963.74 : 15,120.03 = 9,376.35 : x
  2. Step 2: Convert to fraction form
    10,963.74/15,120.03 = 9,376.35/x
  3. Step 3: Cross multiply
    10,963.74x = 15,120.03 × 9,376.35
  4. Step 4: Simplify right side
    10,963.74x = 141,770,693.29
  5. Step 5: Solve for x
    x = 141,770,693.29/10,963.74
  6. Step 6: Final answer
    x = 12,930.87

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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.