Home / 12,578.48-17,357.45-6,913.10

Finding the Fourth Proportional to 12,578.48, 17,357.45 and 6,913.10

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Solution

The fourth proportional to 12,578.48, 17,357.45 and 6,913.10 is: 9,539.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,578.48 : 17,357.45 = 6,913.10 : x
  2. Step 2: Convert to fraction form
    12,578.48/17,357.45 = 6,913.10/x
  3. Step 3: Cross multiply
    12,578.48x = 17,357.45 × 6,913.10
  4. Step 4: Simplify right side
    12,578.48x = 119,993,787.60
  5. Step 5: Solve for x
    x = 119,993,787.60/12,578.48
  6. Step 6: Final answer
    x = 9,539.61

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1.5x scale

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.