Home / 8,309.25-12,521.20-7,529.22

Finding the Fourth Proportional to 8,309.25, 12,521.20 and 7,529.22

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Solution

The fourth proportional to 8,309.25, 12,521.20 and 7,529.22 is: 11,345.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,309.25 : 12,521.20 = 7,529.22 : x
  2. Step 2: Convert to fraction form
    8,309.25/12,521.20 = 7,529.22/x
  3. Step 3: Cross multiply
    8,309.25x = 12,521.20 × 7,529.22
  4. Step 4: Simplify right side
    8,309.25x = 94,274,864.76
  5. Step 5: Solve for x
    x = 94,274,864.76/8,309.25
  6. Step 6: Final answer
    x = 11,345.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.