Home / 10,118.40-15,206.40-8,851.20

Finding the Fourth Proportional to 10,118.40, 15,206.40 and 8,851.20

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Solution

The fourth proportional to 10,118.40, 15,206.40 and 8,851.20 is: 13,301.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,118.40 : 15,206.40 = 8,851.20 : x
  2. Step 2: Convert to fraction form
    10,118.40/15,206.40 = 8,851.20/x
  3. Step 3: Cross multiply
    10,118.40x = 15,206.40 × 8,851.20
  4. Step 4: Simplify right side
    10,118.40x = 134,594,887.68
  5. Step 5: Solve for x
    x = 134,594,887.68/10,118.40
  6. Step 6: Final answer
    x = 13,301.99

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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.