Home / 12,717.95-19,073.48-5,320.89

Finding the Fourth Proportional to 12,717.95, 19,073.48 and 5,320.89

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Solution

The fourth proportional to 12,717.95, 19,073.48 and 5,320.89 is: 7,979.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,717.95 : 19,073.48 = 5,320.89 : x
  2. Step 2: Convert to fraction form
    12,717.95/19,073.48 = 5,320.89/x
  3. Step 3: Cross multiply
    12,717.95x = 19,073.48 × 5,320.89
  4. Step 4: Simplify right side
    12,717.95x = 101,487,862.39
  5. Step 5: Solve for x
    x = 101,487,862.39/12,717.95
  6. Step 6: Final answer
    x = 7,979.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.