Home / 13,312.70-18,371.53-7,344.38

Finding the Fourth Proportional to 13,312.70, 18,371.53 and 7,344.38

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Solution

The fourth proportional to 13,312.70, 18,371.53 and 7,344.38 is: 10,135.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,312.70 : 18,371.53 = 7,344.38 : x
  2. Step 2: Convert to fraction form
    13,312.70/18,371.53 = 7,344.38/x
  3. Step 3: Cross multiply
    13,312.70x = 18,371.53 × 7,344.38
  4. Step 4: Simplify right side
    13,312.70x = 134,927,525.07
  5. Step 5: Solve for x
    x = 134,927,525.07/13,312.70
  6. Step 6: Final answer
    x = 10,135.25

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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.