Home / 10,393.92-14,343.66-5,678.28

Finding the Fourth Proportional to 10,393.92, 14,343.66 and 5,678.28

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Solution

The fourth proportional to 10,393.92, 14,343.66 and 5,678.28 is: 7,836.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,393.92 : 14,343.66 = 5,678.28 : x
  2. Step 2: Convert to fraction form
    10,393.92/14,343.66 = 5,678.28/x
  3. Step 3: Cross multiply
    10,393.92x = 14,343.66 × 5,678.28
  4. Step 4: Simplify right side
    10,393.92x = 81,447,317.70
  5. Step 5: Solve for x
    x = 81,447,317.70/10,393.92
  6. Step 6: Final answer
    x = 7,836.05

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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.