Home / 15,886.92-21,927-9,176.88

Finding the Fourth Proportional to 15,886.92, 21,927 and 9,176.88

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Solution

The fourth proportional to 15,886.92, 21,927 and 9,176.88 is: 12,665.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,886.92 : 21,927 = 9,176.88 : x
  2. Step 2: Convert to fraction form
    15,886.92/21,927 = 9,176.88/x
  3. Step 3: Cross multiply
    15,886.92x = 21,927 × 9,176.88
  4. Step 4: Simplify right side
    15,886.92x = 201,221,447.76
  5. Step 5: Solve for x
    x = 201,221,447.76/15,886.92
  6. Step 6: Final answer
    x = 12,665.86

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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.