Home / 13,312.31-18,370.82-7,344.23

Finding the Fourth Proportional to 13,312.31, 18,370.82 and 7,344.23

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Solution

The fourth proportional to 13,312.31, 18,370.82 and 7,344.23 is: 10,134.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,312.31 : 18,370.82 = 7,344.23 : x
  2. Step 2: Convert to fraction form
    13,312.31/18,370.82 = 7,344.23/x
  3. Step 3: Cross multiply
    13,312.31x = 18,370.82 × 7,344.23
  4. Step 4: Simplify right side
    13,312.31x = 134,919,490.65
  5. Step 5: Solve for x
    x = 134,919,490.65/13,312.31
  6. Step 6: Final answer
    x = 10,134.94

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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.