Home / 13,312.98-18,371.70-7,344.63

Finding the Fourth Proportional to 13,312.98, 18,371.70 and 7,344.63

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Solution

The fourth proportional to 13,312.98, 18,371.70 and 7,344.63 is: 10,135.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,312.98 : 18,371.70 = 7,344.63 : x
  2. Step 2: Convert to fraction form
    13,312.98/18,371.70 = 7,344.63/x
  3. Step 3: Cross multiply
    13,312.98x = 18,371.70 × 7,344.63
  4. Step 4: Simplify right side
    13,312.98x = 134,933,338.97
  5. Step 5: Solve for x
    x = 134,933,338.97/13,312.98
  6. Step 6: Final answer
    x = 10,135.47

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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.