Home / 15,886.50-21,925.26-9,173.76

Finding the Fourth Proportional to 15,886.50, 21,925.26 and 9,173.76

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Solution

The fourth proportional to 15,886.50, 21,925.26 and 9,173.76 is: 12,660.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,886.50 : 21,925.26 = 9,173.76 : x
  2. Step 2: Convert to fraction form
    15,886.50/21,925.26 = 9,173.76/x
  3. Step 3: Cross multiply
    15,886.50x = 21,925.26 × 9,173.76
  4. Step 4: Simplify right side
    15,886.50x = 201,137,073.18
  5. Step 5: Solve for x
    x = 201,137,073.18/15,886.50
  6. Step 6: Final answer
    x = 12,660.88

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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.