Home / 12,130.19-16,739.42-6,752.55

Finding the Fourth Proportional to 12,130.19, 16,739.42 and 6,752.55

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Solution

The fourth proportional to 12,130.19, 16,739.42 and 6,752.55 is: 9,318.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,130.19 : 16,739.42 = 6,752.55 : x
  2. Step 2: Convert to fraction form
    12,130.19/16,739.42 = 6,752.55/x
  3. Step 3: Cross multiply
    12,130.19x = 16,739.42 × 6,752.55
  4. Step 4: Simplify right side
    12,130.19x = 113,033,736.76
  5. Step 5: Solve for x
    x = 113,033,736.76/12,130.19
  6. Step 6: Final answer
    x = 9,318.39

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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.