Home / 18,840.18-25,999.64-10,342.17

Finding the Fourth Proportional to 18,840.18, 25,999.64 and 10,342.17

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Solution

The fourth proportional to 18,840.18, 25,999.64 and 10,342.17 is: 14,272.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,840.18 : 25,999.64 = 10,342.17 : x
  2. Step 2: Convert to fraction form
    18,840.18/25,999.64 = 10,342.17/x
  3. Step 3: Cross multiply
    18,840.18x = 25,999.64 × 10,342.17
  4. Step 4: Simplify right side
    18,840.18x = 268,892,645.11
  5. Step 5: Solve for x
    x = 268,892,645.11/18,840.18
  6. Step 6: Final answer
    x = 14,272.30

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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.