Home / 18,861.72-26,031.15-10,478.22

Finding the Fourth Proportional to 18,861.72, 26,031.15 and 10,478.22

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Solution

The fourth proportional to 18,861.72, 26,031.15 and 10,478.22 is: 14,461.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,861.72 : 26,031.15 = 10,478.22 : x
  2. Step 2: Convert to fraction form
    18,861.72/26,031.15 = 10,478.22/x
  3. Step 3: Cross multiply
    18,861.72x = 26,031.15 × 10,478.22
  4. Step 4: Simplify right side
    18,861.72x = 272,760,116.55
  5. Step 5: Solve for x
    x = 272,760,116.55/18,861.72
  6. Step 6: Final answer
    x = 14,461.04

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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.