Home / 15,134.84-20,886.28-9,167.04

Finding the Fourth Proportional to 15,134.84, 20,886.28 and 9,167.04

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Solution

The fourth proportional to 15,134.84, 20,886.28 and 9,167.04 is: 12,650.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,134.84 : 20,886.28 = 9,167.04 : x
  2. Step 2: Convert to fraction form
    15,134.84/20,886.28 = 9,167.04/x
  3. Step 3: Cross multiply
    15,134.84x = 20,886.28 × 9,167.04
  4. Step 4: Simplify right side
    15,134.84x = 191,465,364.21
  5. Step 5: Solve for x
    x = 191,465,364.21/15,134.84
  6. Step 6: Final answer
    x = 12,650.64

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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.