Home / 10,398.48-14,350.44-5,682.78

Finding the Fourth Proportional to 10,398.48, 14,350.44 and 5,682.78

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Solution

The fourth proportional to 10,398.48, 14,350.44 and 5,682.78 is: 7,842.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,398.48 : 14,350.44 = 5,682.78 : x
  2. Step 2: Convert to fraction form
    10,398.48/14,350.44 = 5,682.78/x
  3. Step 3: Cross multiply
    10,398.48x = 14,350.44 × 5,682.78
  4. Step 4: Simplify right side
    10,398.48x = 81,550,393.42
  5. Step 5: Solve for x
    x = 81,550,393.42/10,398.48
  6. Step 6: Final answer
    x = 7,842.53

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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.