Home / 15,601.21-21,540.95-9,641.05

Finding the Fourth Proportional to 15,601.21, 21,540.95 and 9,641.05

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Solution

The fourth proportional to 15,601.21, 21,540.95 and 9,641.05 is: 13,311.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,601.21 : 21,540.95 = 9,641.05 : x
  2. Step 2: Convert to fraction form
    15,601.21/21,540.95 = 9,641.05/x
  3. Step 3: Cross multiply
    15,601.21x = 21,540.95 × 9,641.05
  4. Step 4: Simplify right side
    15,601.21x = 207,677,327.79
  5. Step 5: Solve for x
    x = 207,677,327.79/15,601.21
  6. Step 6: Final answer
    x = 13,311.62

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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.