Home / 19,555.92-26,988.60-11,172.24

Finding the Fourth Proportional to 19,555.92, 26,988.60 and 11,172.24

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Solution

The fourth proportional to 19,555.92, 26,988.60 and 11,172.24 is: 15,418.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,555.92 : 26,988.60 = 11,172.24 : x
  2. Step 2: Convert to fraction form
    19,555.92/26,988.60 = 11,172.24/x
  3. Step 3: Cross multiply
    19,555.92x = 26,988.60 × 11,172.24
  4. Step 4: Simplify right side
    19,555.92x = 301,523,116.46
  5. Step 5: Solve for x
    x = 301,523,116.46/19,555.92
  6. Step 6: Final answer
    x = 15,418.51

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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.