Home / 10,088.44-13,921.80-5,612.20

Finding the Fourth Proportional to 10,088.44, 13,921.80 and 5,612.20

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Solution

The fourth proportional to 10,088.44, 13,921.80 and 5,612.20 is: 7,744.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,088.44 : 13,921.80 = 5,612.20 : x
  2. Step 2: Convert to fraction form
    10,088.44/13,921.80 = 5,612.20/x
  3. Step 3: Cross multiply
    10,088.44x = 13,921.80 × 5,612.20
  4. Step 4: Simplify right side
    10,088.44x = 78,131,925.96
  5. Step 5: Solve for x
    x = 78,131,925.96/10,088.44
  6. Step 6: Final answer
    x = 7,744.70

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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.