Home / 13,518.76-18,655.26-7,549.25

Finding the Fourth Proportional to 13,518.76, 18,655.26 and 7,549.25

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Solution

The fourth proportional to 13,518.76, 18,655.26 and 7,549.25 is: 10,417.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,518.76 : 18,655.26 = 7,549.25 : x
  2. Step 2: Convert to fraction form
    13,518.76/18,655.26 = 7,549.25/x
  3. Step 3: Cross multiply
    13,518.76x = 18,655.26 × 7,549.25
  4. Step 4: Simplify right side
    13,518.76x = 140,833,221.56
  5. Step 5: Solve for x
    x = 140,833,221.56/13,518.76
  6. Step 6: Final answer
    x = 10,417.61

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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.