Home / 13,307.41-18,363.18-7,338.70

Finding the Fourth Proportional to 13,307.41, 18,363.18 and 7,338.70

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Solution

The fourth proportional to 13,307.41, 18,363.18 and 7,338.70 is: 10,126.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,307.41 : 18,363.18 = 7,338.70 : x
  2. Step 2: Convert to fraction form
    13,307.41/18,363.18 = 7,338.70/x
  3. Step 3: Cross multiply
    13,307.41x = 18,363.18 × 7,338.70
  4. Step 4: Simplify right side
    13,307.41x = 134,761,869.07
  5. Step 5: Solve for x
    x = 134,761,869.07/13,307.41
  6. Step 6: Final answer
    x = 10,126.83

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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.