Home / 15,494.79-21,382.88-9,207.03

Finding the Fourth Proportional to 15,494.79, 21,382.88 and 9,207.03

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Solution

The fourth proportional to 15,494.79, 21,382.88 and 9,207.03 is: 12,705.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,494.79 : 21,382.88 = 9,207.03 : x
  2. Step 2: Convert to fraction form
    15,494.79/21,382.88 = 9,207.03/x
  3. Step 3: Cross multiply
    15,494.79x = 21,382.88 × 9,207.03
  4. Step 4: Simplify right side
    15,494.79x = 196,872,771.61
  5. Step 5: Solve for x
    x = 196,872,771.61/15,494.79
  6. Step 6: Final answer
    x = 12,705.74

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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.