Home / 13,275.68-18,320.52-7,307.19

Finding the Fourth Proportional to 13,275.68, 18,320.52 and 7,307.19

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Solution

The fourth proportional to 13,275.68, 18,320.52 and 7,307.19 is: 10,083.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,275.68 : 18,320.52 = 7,307.19 : x
  2. Step 2: Convert to fraction form
    13,275.68/18,320.52 = 7,307.19/x
  3. Step 3: Cross multiply
    13,275.68x = 18,320.52 × 7,307.19
  4. Step 4: Simplify right side
    13,275.68x = 133,871,520.54
  5. Step 5: Solve for x
    x = 133,871,520.54/13,275.68
  6. Step 6: Final answer
    x = 10,083.97

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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.