Home / 9,118.24-13,677.90-2,878.45

Finding the Fourth Proportional to 9,118.24, 13,677.90 and 2,878.45

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Solution

The fourth proportional to 9,118.24, 13,677.90 and 2,878.45 is: 4,317.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,118.24 : 13,677.90 = 2,878.45 : x
  2. Step 2: Convert to fraction form
    9,118.24/13,677.90 = 2,878.45/x
  3. Step 3: Cross multiply
    9,118.24x = 13,677.90 × 2,878.45
  4. Step 4: Simplify right side
    9,118.24x = 39,371,151.26
  5. Step 5: Solve for x
    x = 39,371,151.26/9,118.24
  6. Step 6: Final answer
    x = 4,317.85

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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.