Home / 10,989.10-15,164.59-6,209.22

Finding the Fourth Proportional to 10,989.10, 15,164.59 and 6,209.22

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Solution

The fourth proportional to 10,989.10, 15,164.59 and 6,209.22 is: 8,568.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,989.10 : 15,164.59 = 6,209.22 : x
  2. Step 2: Convert to fraction form
    10,989.10/15,164.59 = 6,209.22/x
  3. Step 3: Cross multiply
    10,989.10x = 15,164.59 × 6,209.22
  4. Step 4: Simplify right side
    10,989.10x = 94,160,275.52
  5. Step 5: Solve for x
    x = 94,160,275.52/10,989.10
  6. Step 6: Final answer
    x = 8,568.52

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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.