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Finding the Fourth Proportional to 18,862, 26,030.64 and 10,479.04

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Solution

The fourth proportional to 18,862, 26,030.64 and 10,479.04 is: 14,461.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,862 : 26,030.64 = 10,479.04 : x
  2. Step 2: Convert to fraction form
    18,862/26,030.64 = 10,479.04/x
  3. Step 3: Cross multiply
    18,862x = 26,030.64 × 10,479.04
  4. Step 4: Simplify right side
    18,862x = 272,776,117.79
  5. Step 5: Solve for x
    x = 272,776,117.79/18,862
  6. Step 6: Final answer
    x = 14,461.68

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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.