Home / 10,987.26-15,158.66-6,206.64

Finding the Fourth Proportional to 10,987.26, 15,158.66 and 6,206.64

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Solution

The fourth proportional to 10,987.26, 15,158.66 and 6,206.64 is: 8,563.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,987.26 : 15,158.66 = 6,206.64 : x
  2. Step 2: Convert to fraction form
    10,987.26/15,158.66 = 6,206.64/x
  3. Step 3: Cross multiply
    10,987.26x = 15,158.66 × 6,206.64
  4. Step 4: Simplify right side
    10,987.26x = 94,084,314.47
  5. Step 5: Solve for x
    x = 94,084,314.47/10,987.26
  6. Step 6: Final answer
    x = 8,563.04

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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.