Home / 14,701.26-20,287.90-7,987.02

Finding the Fourth Proportional to 14,701.26, 20,287.90 and 7,987.02

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Solution

The fourth proportional to 14,701.26, 20,287.90 and 7,987.02 is: 11,022.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,701.26 : 20,287.90 = 7,987.02 : x
  2. Step 2: Convert to fraction form
    14,701.26/20,287.90 = 7,987.02/x
  3. Step 3: Cross multiply
    14,701.26x = 20,287.90 × 7,987.02
  4. Step 4: Simplify right side
    14,701.26x = 162,039,863.06
  5. Step 5: Solve for x
    x = 162,039,863.06/14,701.26
  6. Step 6: Final answer
    x = 11,022.18

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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.