Home / 15,088.24-20,821.78-8,373.87

Finding the Fourth Proportional to 15,088.24, 20,821.78 and 8,373.87

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Solution

The fourth proportional to 15,088.24, 20,821.78 and 8,373.87 is: 11,555.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,088.24 : 20,821.78 = 8,373.87 : x
  2. Step 2: Convert to fraction form
    15,088.24/20,821.78 = 8,373.87/x
  3. Step 3: Cross multiply
    15,088.24x = 20,821.78 × 8,373.87
  4. Step 4: Simplify right side
    15,088.24x = 174,358,878.89
  5. Step 5: Solve for x
    x = 174,358,878.89/15,088.24
  6. Step 6: Final answer
    x = 11,555.95

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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.