Home / 13,119.48-18,101.67-8,017.68

Finding the Fourth Proportional to 13,119.48, 18,101.67 and 8,017.68

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Solution

The fourth proportional to 13,119.48, 18,101.67 and 8,017.68 is: 11,062.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,119.48 : 18,101.67 = 8,017.68 : x
  2. Step 2: Convert to fraction form
    13,119.48/18,101.67 = 8,017.68/x
  3. Step 3: Cross multiply
    13,119.48x = 18,101.67 × 8,017.68
  4. Step 4: Simplify right side
    13,119.48x = 145,133,397.53
  5. Step 5: Solve for x
    x = 145,133,397.53/13,119.48
  6. Step 6: Final answer
    x = 11,062.44

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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.