Home / 12,427.47-17,149.98-6,762.30

Finding the Fourth Proportional to 12,427.47, 17,149.98 and 6,762.30

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Solution

The fourth proportional to 12,427.47, 17,149.98 and 6,762.30 is: 9,332.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,427.47 : 17,149.98 = 6,762.30 : x
  2. Step 2: Convert to fraction form
    12,427.47/17,149.98 = 6,762.30/x
  3. Step 3: Cross multiply
    12,427.47x = 17,149.98 × 6,762.30
  4. Step 4: Simplify right side
    12,427.47x = 115,973,309.75
  5. Step 5: Solve for x
    x = 115,973,309.75/12,427.47
  6. Step 6: Final answer
    x = 9,332.01

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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.