Home / 14,276.52-19,700.28-7,987.68

Finding the Fourth Proportional to 14,276.52, 19,700.28 and 7,987.68

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Solution

The fourth proportional to 14,276.52, 19,700.28 and 7,987.68 is: 11,022.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,276.52 : 19,700.28 = 7,987.68 : x
  2. Step 2: Convert to fraction form
    14,276.52/19,700.28 = 7,987.68/x
  3. Step 3: Cross multiply
    14,276.52x = 19,700.28 × 7,987.68
  4. Step 4: Simplify right side
    14,276.52x = 157,359,532.55
  5. Step 5: Solve for x
    x = 157,359,532.55/14,276.52
  6. Step 6: Final answer
    x = 11,022.26

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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.