Home / 13,316.31-18,376.56-7,348.15

Finding the Fourth Proportional to 13,316.31, 18,376.56 and 7,348.15

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Solution

The fourth proportional to 13,316.31, 18,376.56 and 7,348.15 is: 10,140.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,316.31 : 18,376.56 = 7,348.15 : x
  2. Step 2: Convert to fraction form
    13,316.31/18,376.56 = 7,348.15/x
  3. Step 3: Cross multiply
    13,316.31x = 18,376.56 × 7,348.15
  4. Step 4: Simplify right side
    13,316.31x = 135,033,763.00
  5. Step 5: Solve for x
    x = 135,033,763.00/13,316.31
  6. Step 6: Final answer
    x = 10,140.48

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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.