Home / 9,966.19-13,752.31-6,137.21

Finding the Fourth Proportional to 9,966.19, 13,752.31 and 6,137.21

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Solution

The fourth proportional to 9,966.19, 13,752.31 and 6,137.21 is: 8,468.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,966.19 : 13,752.31 = 6,137.21 : x
  2. Step 2: Convert to fraction form
    9,966.19/13,752.31 = 6,137.21/x
  3. Step 3: Cross multiply
    9,966.19x = 13,752.31 × 6,137.21
  4. Step 4: Simplify right side
    9,966.19x = 84,400,833.49
  5. Step 5: Solve for x
    x = 84,400,833.49/9,966.19
  6. Step 6: Final answer
    x = 8,468.72

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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.