Home / 13,370.28-20,041.29-7,126.44

Finding the Fourth Proportional to 13,370.28, 20,041.29 and 7,126.44

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Solution

The fourth proportional to 13,370.28, 20,041.29 and 7,126.44 is: 10,682.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,370.28 : 20,041.29 = 7,126.44 : x
  2. Step 2: Convert to fraction form
    13,370.28/20,041.29 = 7,126.44/x
  3. Step 3: Cross multiply
    13,370.28x = 20,041.29 × 7,126.44
  4. Step 4: Simplify right side
    13,370.28x = 142,823,050.71
  5. Step 5: Solve for x
    x = 142,823,050.71/13,370.28
  6. Step 6: Final answer
    x = 10,682.13

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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.