Home / 13,521.10-18,658.92-7,552.86

Finding the Fourth Proportional to 13,521.10, 18,658.92 and 7,552.86

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Solution

The fourth proportional to 13,521.10, 18,658.92 and 7,552.86 is: 10,422.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,521.10 : 18,658.92 = 7,552.86 : x
  2. Step 2: Convert to fraction form
    13,521.10/18,658.92 = 7,552.86/x
  3. Step 3: Cross multiply
    13,521.10x = 18,658.92 × 7,552.86
  4. Step 4: Simplify right side
    13,521.10x = 140,928,210.51
  5. Step 5: Solve for x
    x = 140,928,210.51/13,521.10
  6. Step 6: Final answer
    x = 10,422.84

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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.