Home / 18,763.70-28,159.45-15,110.04

Finding the Fourth Proportional to 18,763.70, 28,159.45 and 15,110.04

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Solution

The fourth proportional to 18,763.70, 28,159.45 and 15,110.04 is: 22,676.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,763.70 : 28,159.45 = 15,110.04 : x
  2. Step 2: Convert to fraction form
    18,763.70/28,159.45 = 15,110.04/x
  3. Step 3: Cross multiply
    18,763.70x = 28,159.45 × 15,110.04
  4. Step 4: Simplify right side
    18,763.70x = 425,490,483.70
  5. Step 5: Solve for x
    x = 425,490,483.70/18,763.70
  6. Step 6: Final answer
    x = 22,676.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.