Home / 13,275.26-18,319.98-7,306.76

Finding the Fourth Proportional to 13,275.26, 18,319.98 and 7,306.76

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Solution

The fourth proportional to 13,275.26, 18,319.98 and 7,306.76 is: 10,083.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,275.26 : 18,319.98 = 7,306.76 : x
  2. Step 2: Convert to fraction form
    13,275.26/18,319.98 = 7,306.76/x
  3. Step 3: Cross multiply
    13,275.26x = 18,319.98 × 7,306.76
  4. Step 4: Simplify right side
    13,275.26x = 133,859,697.06
  5. Step 5: Solve for x
    x = 133,859,697.06/13,275.26
  6. Step 6: Final answer
    x = 10,083.40

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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.