Home / 13,971.38-20,970.83-10,263.20

Finding the Fourth Proportional to 13,971.38, 20,970.83 and 10,263.20

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Solution

The fourth proportional to 13,971.38, 20,970.83 and 10,263.20 is: 15,404.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,971.38 : 20,970.83 = 10,263.20 : x
  2. Step 2: Convert to fraction form
    13,971.38/20,970.83 = 10,263.20/x
  3. Step 3: Cross multiply
    13,971.38x = 20,970.83 × 10,263.20
  4. Step 4: Simplify right side
    13,971.38x = 215,227,822.46
  5. Step 5: Solve for x
    x = 215,227,822.46/13,971.38
  6. Step 6: Final answer
    x = 15,404.91

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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.