Home / 15,987.35-22,062.05-8,719.17

Finding the Fourth Proportional to 15,987.35, 22,062.05 and 8,719.17

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Solution

The fourth proportional to 15,987.35, 22,062.05 and 8,719.17 is: 12,032.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,987.35 : 22,062.05 = 8,719.17 : x
  2. Step 2: Convert to fraction form
    15,987.35/22,062.05 = 8,719.17/x
  3. Step 3: Cross multiply
    15,987.35x = 22,062.05 × 8,719.17
  4. Step 4: Simplify right side
    15,987.35x = 192,362,708.39
  5. Step 5: Solve for x
    x = 192,362,708.39/15,987.35
  6. Step 6: Final answer
    x = 12,032.18

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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.