Home / 15,671.48-21,624.51-8,956.64

Finding the Fourth Proportional to 15,671.48, 21,624.51 and 8,956.64

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Solution

The fourth proportional to 15,671.48, 21,624.51 and 8,956.64 is: 12,358.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,671.48 : 21,624.51 = 8,956.64 : x
  2. Step 2: Convert to fraction form
    15,671.48/21,624.51 = 8,956.64/x
  3. Step 3: Cross multiply
    15,671.48x = 21,624.51 × 8,956.64
  4. Step 4: Simplify right side
    15,671.48x = 193,682,951.25
  5. Step 5: Solve for x
    x = 193,682,951.25/15,671.48
  6. Step 6: Final answer
    x = 12,358.94

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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.