Home / 14,275.71-19,701.12-7,988.09

Finding the Fourth Proportional to 14,275.71, 19,701.12 and 7,988.09

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Solution

The fourth proportional to 14,275.71, 19,701.12 and 7,988.09 is: 11,023.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,275.71 : 19,701.12 = 7,988.09 : x
  2. Step 2: Convert to fraction form
    14,275.71/19,701.12 = 7,988.09/x
  3. Step 3: Cross multiply
    14,275.71x = 19,701.12 × 7,988.09
  4. Step 4: Simplify right side
    14,275.71x = 157,374,251.11
  5. Step 5: Solve for x
    x = 157,374,251.11/14,275.71
  6. Step 6: Final answer
    x = 11,023.92

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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.