Home / 8,740.64-13,111.44-2,585.12

Finding the Fourth Proportional to 8,740.64, 13,111.44 and 2,585.12

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Solution

The fourth proportional to 8,740.64, 13,111.44 and 2,585.12 is: 3,877.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,740.64 : 13,111.44 = 2,585.12 : x
  2. Step 2: Convert to fraction form
    8,740.64/13,111.44 = 2,585.12/x
  3. Step 3: Cross multiply
    8,740.64x = 13,111.44 × 2,585.12
  4. Step 4: Simplify right side
    8,740.64x = 33,894,645.77
  5. Step 5: Solve for x
    x = 33,894,645.77/8,740.64
  6. Step 6: Final answer
    x = 3,877.82

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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.