Home / 13,079.18-18,049.08-7,110.68

Finding the Fourth Proportional to 13,079.18, 18,049.08 and 7,110.68

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Solution

The fourth proportional to 13,079.18, 18,049.08 and 7,110.68 is: 9,812.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,079.18 : 18,049.08 = 7,110.68 : x
  2. Step 2: Convert to fraction form
    13,079.18/18,049.08 = 7,110.68/x
  3. Step 3: Cross multiply
    13,079.18x = 18,049.08 × 7,110.68
  4. Step 4: Simplify right side
    13,079.18x = 128,341,232.17
  5. Step 5: Solve for x
    x = 128,341,232.17/13,079.18
  6. Step 6: Final answer
    x = 9,812.64

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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.