Home / 15,932.61-21,987.56-8,763.08

Finding the Fourth Proportional to 15,932.61, 21,987.56 and 8,763.08

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Solution

The fourth proportional to 15,932.61, 21,987.56 and 8,763.08 is: 12,093.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,932.61 : 21,987.56 = 8,763.08 : x
  2. Step 2: Convert to fraction form
    15,932.61/21,987.56 = 8,763.08/x
  3. Step 3: Cross multiply
    15,932.61x = 21,987.56 × 8,763.08
  4. Step 4: Simplify right side
    15,932.61x = 192,678,659.25
  5. Step 5: Solve for x
    x = 192,678,659.25/15,932.61
  6. Step 6: Final answer
    x = 12,093.35

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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.