Home / 13,307.97-18,365.84-7,339.65

Finding the Fourth Proportional to 13,307.97, 18,365.84 and 7,339.65

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Solution

The fourth proportional to 13,307.97, 18,365.84 and 7,339.65 is: 10,129.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,307.97 : 18,365.84 = 7,339.65 : x
  2. Step 2: Convert to fraction form
    13,307.97/18,365.84 = 7,339.65/x
  3. Step 3: Cross multiply
    13,307.97x = 18,365.84 × 7,339.65
  4. Step 4: Simplify right side
    13,307.97x = 134,798,938.54
  5. Step 5: Solve for x
    x = 134,798,938.54/13,307.97
  6. Step 6: Final answer
    x = 10,129.19

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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.