Home / 13,752.76-18,979.20-7,465.54

Finding the Fourth Proportional to 13,752.76, 18,979.20 and 7,465.54

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Solution

The fourth proportional to 13,752.76, 18,979.20 and 7,465.54 is: 10,302.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,752.76 : 18,979.20 = 7,465.54 : x
  2. Step 2: Convert to fraction form
    13,752.76/18,979.20 = 7,465.54/x
  3. Step 3: Cross multiply
    13,752.76x = 18,979.20 × 7,465.54
  4. Step 4: Simplify right side
    13,752.76x = 141,689,976.77
  5. Step 5: Solve for x
    x = 141,689,976.77/13,752.76
  6. Step 6: Final answer
    x = 10,302.66

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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.