Home / 13,443.40-20,186.70-10,160.20

Finding the Fourth Proportional to 13,443.40, 20,186.70 and 10,160.20

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Solution

The fourth proportional to 13,443.40, 20,186.70 and 10,160.20 is: 15,256.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,443.40 : 20,186.70 = 10,160.20 : x
  2. Step 2: Convert to fraction form
    13,443.40/20,186.70 = 10,160.20/x
  3. Step 3: Cross multiply
    13,443.40x = 20,186.70 × 10,160.20
  4. Step 4: Simplify right side
    13,443.40x = 205,100,909.34
  5. Step 5: Solve for x
    x = 205,100,909.34/13,443.40
  6. Step 6: Final answer
    x = 15,256.62

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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.