Home / 10,128.44-13,977.23-5,652.15

Finding the Fourth Proportional to 10,128.44, 13,977.23 and 5,652.15

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Solution

The fourth proportional to 10,128.44, 13,977.23 and 5,652.15 is: 7,799.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,128.44 : 13,977.23 = 5,652.15 : x
  2. Step 2: Convert to fraction form
    10,128.44/13,977.23 = 5,652.15/x
  3. Step 3: Cross multiply
    10,128.44x = 13,977.23 × 5,652.15
  4. Step 4: Simplify right side
    10,128.44x = 79,001,319.87
  5. Step 5: Solve for x
    x = 79,001,319.87/10,128.44
  6. Step 6: Final answer
    x = 7,799.95

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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.