Home / 8,561.16-12,840.26-2,320.35

Finding the Fourth Proportional to 8,561.16, 12,840.26 and 2,320.35

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Solution

The fourth proportional to 8,561.16, 12,840.26 and 2,320.35 is: 3,480.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,561.16 : 12,840.26 = 2,320.35 : x
  2. Step 2: Convert to fraction form
    8,561.16/12,840.26 = 2,320.35/x
  3. Step 3: Cross multiply
    8,561.16x = 12,840.26 × 2,320.35
  4. Step 4: Simplify right side
    8,561.16x = 29,793,837.54
  5. Step 5: Solve for x
    x = 29,793,837.54/8,561.16
  6. Step 6: Final answer
    x = 3,480.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.