Home / 15,745.46-21,727.12-9,694.74

Finding the Fourth Proportional to 15,745.46, 21,727.12 and 9,694.74

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Solution

The fourth proportional to 15,745.46, 21,727.12 and 9,694.74 is: 13,377.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,745.46 : 21,727.12 = 9,694.74 : x
  2. Step 2: Convert to fraction form
    15,745.46/21,727.12 = 9,694.74/x
  3. Step 3: Cross multiply
    15,745.46x = 21,727.12 × 9,694.74
  4. Step 4: Simplify right side
    15,745.46x = 210,638,670.71
  5. Step 5: Solve for x
    x = 210,638,670.71/15,745.46
  6. Step 6: Final answer
    x = 13,377.74

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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.