Home / 15,717.03-21,690.28-9,750.62

Finding the Fourth Proportional to 15,717.03, 21,690.28 and 9,750.62

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Solution

The fourth proportional to 15,717.03, 21,690.28 and 9,750.62 is: 13,456.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,717.03 : 21,690.28 = 9,750.62 : x
  2. Step 2: Convert to fraction form
    15,717.03/21,690.28 = 9,750.62/x
  3. Step 3: Cross multiply
    15,717.03x = 21,690.28 × 9,750.62
  4. Step 4: Simplify right side
    15,717.03x = 211,493,677.97
  5. Step 5: Solve for x
    x = 211,493,677.97/15,717.03
  6. Step 6: Final answer
    x = 13,456.34

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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.