Home / 13,310.61-18,368.42-7,342.13

Finding the Fourth Proportional to 13,310.61, 18,368.42 and 7,342.13

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Solution

The fourth proportional to 13,310.61, 18,368.42 and 7,342.13 is: 10,132.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,310.61 : 18,368.42 = 7,342.13 : x
  2. Step 2: Convert to fraction form
    13,310.61/18,368.42 = 7,342.13/x
  3. Step 3: Cross multiply
    13,310.61x = 18,368.42 × 7,342.13
  4. Step 4: Simplify right side
    13,310.61x = 134,863,198.98
  5. Step 5: Solve for x
    x = 134,863,198.98/13,310.61
  6. Step 6: Final answer
    x = 10,132.01

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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.