Home / 13,315.59-18,376.62-7,348.55

Finding the Fourth Proportional to 13,315.59, 18,376.62 and 7,348.55

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Solution

The fourth proportional to 13,315.59, 18,376.62 and 7,348.55 is: 10,141.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,315.59 : 18,376.62 = 7,348.55 : x
  2. Step 2: Convert to fraction form
    13,315.59/18,376.62 = 7,348.55/x
  3. Step 3: Cross multiply
    13,315.59x = 18,376.62 × 7,348.55
  4. Step 4: Simplify right side
    13,315.59x = 135,041,510.90
  5. Step 5: Solve for x
    x = 135,041,510.90/13,315.59
  6. Step 6: Final answer
    x = 10,141.61

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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.