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Finding the Fourth Proportional to 18,850, 26,013.72 and 10,466.32

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Solution

The fourth proportional to 18,850, 26,013.72 and 10,466.32 is: 14,443.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,850 : 26,013.72 = 10,466.32 : x
  2. Step 2: Convert to fraction form
    18,850/26,013.72 = 10,466.32/x
  3. Step 3: Cross multiply
    18,850x = 26,013.72 × 10,466.32
  4. Step 4: Simplify right side
    18,850x = 272,267,917.91
  5. Step 5: Solve for x
    x = 272,267,917.91/18,850
  6. Step 6: Final answer
    x = 14,443.92

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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.