Home / 15,909.64-21,956.28-8,836.18

Finding the Fourth Proportional to 15,909.64, 21,956.28 and 8,836.18

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Solution

The fourth proportional to 15,909.64, 21,956.28 and 8,836.18 is: 12,194.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,909.64 : 21,956.28 = 8,836.18 : x
  2. Step 2: Convert to fraction form
    15,909.64/21,956.28 = 8,836.18/x
  3. Step 3: Cross multiply
    15,909.64x = 21,956.28 × 8,836.18
  4. Step 4: Simplify right side
    15,909.64x = 194,009,642.21
  5. Step 5: Solve for x
    x = 194,009,642.21/15,909.64
  6. Step 6: Final answer
    x = 12,194.47

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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.