Home / 15,416.91-23,126.40-5,420.46

Finding the Fourth Proportional to 15,416.91, 23,126.40 and 5,420.46

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Solution

The fourth proportional to 15,416.91, 23,126.40 and 5,420.46 is: 8,131.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,416.91 : 23,126.40 = 5,420.46 : x
  2. Step 2: Convert to fraction form
    15,416.91/23,126.40 = 5,420.46/x
  3. Step 3: Cross multiply
    15,416.91x = 23,126.40 × 5,420.46
  4. Step 4: Simplify right side
    15,416.91x = 125,355,726.14
  5. Step 5: Solve for x
    x = 125,355,726.14/15,416.91
  6. Step 6: Final answer
    x = 8,131.05

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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.