Home / 13,428.36-18,531.14-7,460.57

Finding the Fourth Proportional to 13,428.36, 18,531.14 and 7,460.57

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Solution

The fourth proportional to 13,428.36, 18,531.14 and 7,460.57 is: 10,295.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,428.36 : 18,531.14 = 7,460.57 : x
  2. Step 2: Convert to fraction form
    13,428.36/18,531.14 = 7,460.57/x
  3. Step 3: Cross multiply
    13,428.36x = 18,531.14 × 7,460.57
  4. Step 4: Simplify right side
    13,428.36x = 138,252,876.17
  5. Step 5: Solve for x
    x = 138,252,876.17/13,428.36
  6. Step 6: Final answer
    x = 10,295.59

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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.