Home / 13,585.50-20,348.13-10,442.34

Finding the Fourth Proportional to 13,585.50, 20,348.13 and 10,442.34

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Solution

The fourth proportional to 13,585.50, 20,348.13 and 10,442.34 is: 15,640.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,585.50 : 20,348.13 = 10,442.34 : x
  2. Step 2: Convert to fraction form
    13,585.50/20,348.13 = 10,442.34/x
  3. Step 3: Cross multiply
    13,585.50x = 20,348.13 × 10,442.34
  4. Step 4: Simplify right side
    13,585.50x = 212,482,091.82
  5. Step 5: Solve for x
    x = 212,482,091.82/13,585.50
  6. Step 6: Final answer
    x = 15,640.36

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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.