Home / 15,117.03-20,863.17-8,829

Finding the Fourth Proportional to 15,117.03, 20,863.17 and 8,829

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Solution

The fourth proportional to 15,117.03, 20,863.17 and 8,829 is: 12,184.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,117.03 : 20,863.17 = 8,829 : x
  2. Step 2: Convert to fraction form
    15,117.03/20,863.17 = 8,829/x
  3. Step 3: Cross multiply
    15,117.03x = 20,863.17 × 8,829
  4. Step 4: Simplify right side
    15,117.03x = 184,200,927.93
  5. Step 5: Solve for x
    x = 184,200,927.93/15,117.03
  6. Step 6: Final answer
    x = 12,184.99

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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.