Home / 18,722.20-25,840.98-12,349.93

Finding the Fourth Proportional to 18,722.20, 25,840.98 and 12,349.93

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Solution

The fourth proportional to 18,722.20, 25,840.98 and 12,349.93 is: 17,045.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,722.20 : 25,840.98 = 12,349.93 : x
  2. Step 2: Convert to fraction form
    18,722.20/25,840.98 = 12,349.93/x
  3. Step 3: Cross multiply
    18,722.20x = 25,840.98 × 12,349.93
  4. Step 4: Simplify right side
    18,722.20x = 319,134,294.13
  5. Step 5: Solve for x
    x = 319,134,294.13/18,722.20
  6. Step 6: Final answer
    x = 17,045.77

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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.