Home / 12,565.21-17,340.47-6,977.29

Finding the Fourth Proportional to 12,565.21, 17,340.47 and 6,977.29

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Solution

The fourth proportional to 12,565.21, 17,340.47 and 6,977.29 is: 9,628.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,565.21 : 17,340.47 = 6,977.29 : x
  2. Step 2: Convert to fraction form
    12,565.21/17,340.47 = 6,977.29/x
  3. Step 3: Cross multiply
    12,565.21x = 17,340.47 × 6,977.29
  4. Step 4: Simplify right side
    12,565.21x = 120,989,487.93
  5. Step 5: Solve for x
    x = 120,989,487.93/12,565.21
  6. Step 6: Final answer
    x = 9,628.93

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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.