Home / 10,120.48-13,966.02-5,644.22

Finding the Fourth Proportional to 10,120.48, 13,966.02 and 5,644.22

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Solution

The fourth proportional to 10,120.48, 13,966.02 and 5,644.22 is: 7,788.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,120.48 : 13,966.02 = 5,644.22 : x
  2. Step 2: Convert to fraction form
    10,120.48/13,966.02 = 5,644.22/x
  3. Step 3: Cross multiply
    10,120.48x = 13,966.02 × 5,644.22
  4. Step 4: Simplify right side
    10,120.48x = 78,827,219.57
  5. Step 5: Solve for x
    x = 78,827,219.57/10,120.48
  6. Step 6: Final answer
    x = 7,788.88

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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.