Home / 9,712.64-14,569.92-2,788.16

Finding the Fourth Proportional to 9,712.64, 14,569.92 and 2,788.16

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Solution

The fourth proportional to 9,712.64, 14,569.92 and 2,788.16 is: 4,182.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,712.64 : 14,569.92 = 2,788.16 : x
  2. Step 2: Convert to fraction form
    9,712.64/14,569.92 = 2,788.16/x
  3. Step 3: Cross multiply
    9,712.64x = 14,569.92 × 2,788.16
  4. Step 4: Simplify right side
    9,712.64x = 40,623,268.15
  5. Step 5: Solve for x
    x = 40,623,268.15/9,712.64
  6. Step 6: Final answer
    x = 4,182.52

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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.