Home / 11,020.68-15,210.90-7,197.48

Finding the Fourth Proportional to 11,020.68, 15,210.90 and 7,197.48

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Solution

The fourth proportional to 11,020.68, 15,210.90 and 7,197.48 is: 9,934.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,020.68 : 15,210.90 = 7,197.48 : x
  2. Step 2: Convert to fraction form
    11,020.68/15,210.90 = 7,197.48/x
  3. Step 3: Cross multiply
    11,020.68x = 15,210.90 × 7,197.48
  4. Step 4: Simplify right side
    11,020.68x = 109,480,148.53
  5. Step 5: Solve for x
    x = 109,480,148.53/11,020.68
  6. Step 6: Final answer
    x = 9,934.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.