Home / 14,275.92-19,700.64-7,988.36

Finding the Fourth Proportional to 14,275.92, 19,700.64 and 7,988.36

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Solution

The fourth proportional to 14,275.92, 19,700.64 and 7,988.36 is: 11,023.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,275.92 : 19,700.64 = 7,988.36 : x
  2. Step 2: Convert to fraction form
    14,275.92/19,700.64 = 7,988.36/x
  3. Step 3: Cross multiply
    14,275.92x = 19,700.64 × 7,988.36
  4. Step 4: Simplify right side
    14,275.92x = 157,375,804.55
  5. Step 5: Solve for x
    x = 157,375,804.55/14,275.92
  6. Step 6: Final answer
    x = 11,023.86

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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.