Home / 13,024.15-17,981-8,555.70

Finding the Fourth Proportional to 13,024.15, 17,981 and 8,555.70

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Solution

The fourth proportional to 13,024.15, 17,981 and 8,555.70 is: 11,811.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,024.15 : 17,981 = 8,555.70 : x
  2. Step 2: Convert to fraction form
    13,024.15/17,981 = 8,555.70/x
  3. Step 3: Cross multiply
    13,024.15x = 17,981 × 8,555.70
  4. Step 4: Simplify right side
    13,024.15x = 153,840,041.70
  5. Step 5: Solve for x
    x = 153,840,041.70/13,024.15
  6. Step 6: Final answer
    x = 11,811.91

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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.