Home / 10,134.33-15,134.96-8,637.60

Finding the Fourth Proportional to 10,134.33, 15,134.96 and 8,637.60

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Solution

The fourth proportional to 10,134.33, 15,134.96 and 8,637.60 is: 12,899.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,134.33 : 15,134.96 = 8,637.60 : x
  2. Step 2: Convert to fraction form
    10,134.33/15,134.96 = 8,637.60/x
  3. Step 3: Cross multiply
    10,134.33x = 15,134.96 × 8,637.60
  4. Step 4: Simplify right side
    10,134.33x = 130,729,684.26
  5. Step 5: Solve for x
    x = 130,729,684.26/10,134.33
  6. Step 6: Final answer
    x = 12,899.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.