Home / 18,388.61-25,375.52-10,430.66

Finding the Fourth Proportional to 18,388.61, 25,375.52 and 10,430.66

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Solution

The fourth proportional to 18,388.61, 25,375.52 and 10,430.66 is: 14,393.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,388.61 : 25,375.52 = 10,430.66 : x
  2. Step 2: Convert to fraction form
    18,388.61/25,375.52 = 10,430.66/x
  3. Step 3: Cross multiply
    18,388.61x = 25,375.52 × 10,430.66
  4. Step 4: Simplify right side
    18,388.61x = 264,683,242.41
  5. Step 5: Solve for x
    x = 264,683,242.41/18,388.61
  6. Step 6: Final answer
    x = 14,393.87

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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.