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Finding the Fourth Proportional to 18,862.64, 26,030.64 and 10,479.12

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Solution

The fourth proportional to 18,862.64, 26,030.64 and 10,479.12 is: 14,461.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,862.64 : 26,030.64 = 10,479.12 : x
  2. Step 2: Convert to fraction form
    18,862.64/26,030.64 = 10,479.12/x
  3. Step 3: Cross multiply
    18,862.64x = 26,030.64 × 10,479.12
  4. Step 4: Simplify right side
    18,862.64x = 272,778,200.24
  5. Step 5: Solve for x
    x = 272,778,200.24/18,862.64
  6. Step 6: Final answer
    x = 14,461.29

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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.