Home / 15,088.42-20,821.62-8,373.70

Finding the Fourth Proportional to 15,088.42, 20,821.62 and 8,373.70

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Solution

The fourth proportional to 15,088.42, 20,821.62 and 8,373.70 is: 11,555.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,088.42 : 20,821.62 = 8,373.70 : x
  2. Step 2: Convert to fraction form
    15,088.42/20,821.62 = 8,373.70/x
  3. Step 3: Cross multiply
    15,088.42x = 20,821.62 × 8,373.70
  4. Step 4: Simplify right side
    15,088.42x = 174,353,999.39
  5. Step 5: Solve for x
    x = 174,353,999.39/15,088.42
  6. Step 6: Final answer
    x = 11,555.48

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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.