Home / 13,510.75-18,645.14-8,475.18

Finding the Fourth Proportional to 13,510.75, 18,645.14 and 8,475.18

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Solution

The fourth proportional to 13,510.75, 18,645.14 and 8,475.18 is: 11,695.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,510.75 : 18,645.14 = 8,475.18 : x
  2. Step 2: Convert to fraction form
    13,510.75/18,645.14 = 8,475.18/x
  3. Step 3: Cross multiply
    13,510.75x = 18,645.14 × 8,475.18
  4. Step 4: Simplify right side
    13,510.75x = 158,020,926.10
  5. Step 5: Solve for x
    x = 158,020,926.10/13,510.75
  6. Step 6: Final answer
    x = 11,695.94

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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.