Home / 10,304.81-15,455.56-2,909.78

Finding the Fourth Proportional to 10,304.81, 15,455.56 and 2,909.78

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Solution

The fourth proportional to 10,304.81, 15,455.56 and 2,909.78 is: 4,364.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,304.81 : 15,455.56 = 2,909.78 : x
  2. Step 2: Convert to fraction form
    10,304.81/15,455.56 = 2,909.78/x
  3. Step 3: Cross multiply
    10,304.81x = 15,455.56 × 2,909.78
  4. Step 4: Simplify right side
    10,304.81x = 44,972,279.38
  5. Step 5: Solve for x
    x = 44,972,279.38/10,304.81
  6. Step 6: Final answer
    x = 4,364.20

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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.