Home / 12,557.20-17,328.72-6,968.08

Finding the Fourth Proportional to 12,557.20, 17,328.72 and 6,968.08

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Solution

The fourth proportional to 12,557.20, 17,328.72 and 6,968.08 is: 9,615.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,557.20 : 17,328.72 = 6,968.08 : x
  2. Step 2: Convert to fraction form
    12,557.20/17,328.72 = 6,968.08/x
  3. Step 3: Cross multiply
    12,557.20x = 17,328.72 × 6,968.08
  4. Step 4: Simplify right side
    12,557.20x = 120,747,907.26
  5. Step 5: Solve for x
    x = 120,747,907.26/12,557.20
  6. Step 6: Final answer
    x = 9,615.83

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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.