Home / 10,315.74-15,439.38-9,393.42

Finding the Fourth Proportional to 10,315.74, 15,439.38 and 9,393.42

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Solution

The fourth proportional to 10,315.74, 15,439.38 and 9,393.42 is: 14,058.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,315.74 : 15,439.38 = 9,393.42 : x
  2. Step 2: Convert to fraction form
    10,315.74/15,439.38 = 9,393.42/x
  3. Step 3: Cross multiply
    10,315.74x = 15,439.38 × 9,393.42
  4. Step 4: Simplify right side
    10,315.74x = 145,028,580.88
  5. Step 5: Solve for x
    x = 145,028,580.88/10,315.74
  6. Step 6: Final answer
    x = 14,058.96

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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.