Home / 10,281.06-15,331.31-10,187.51

Finding the Fourth Proportional to 10,281.06, 15,331.31 and 10,187.51

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Solution

The fourth proportional to 10,281.06, 15,331.31 and 10,187.51 is: 15,191.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,281.06 : 15,331.31 = 10,187.51 : x
  2. Step 2: Convert to fraction form
    10,281.06/15,331.31 = 10,187.51/x
  3. Step 3: Cross multiply
    10,281.06x = 15,331.31 × 10,187.51
  4. Step 4: Simplify right side
    10,281.06x = 156,187,784.55
  5. Step 5: Solve for x
    x = 156,187,784.55/10,281.06
  6. Step 6: Final answer
    x = 15,191.80

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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.