Home / 10,220.05-14,102.80-5,743.45

Finding the Fourth Proportional to 10,220.05, 14,102.80 and 5,743.45

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Solution

The fourth proportional to 10,220.05, 14,102.80 and 5,743.45 is: 7,925.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,220.05 : 14,102.80 = 5,743.45 : x
  2. Step 2: Convert to fraction form
    10,220.05/14,102.80 = 5,743.45/x
  3. Step 3: Cross multiply
    10,220.05x = 14,102.80 × 5,743.45
  4. Step 4: Simplify right side
    10,220.05x = 80,998,726.66
  5. Step 5: Solve for x
    x = 80,998,726.66/10,220.05
  6. Step 6: Final answer
    x = 7,925.47

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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.