Home / 15,660.41-21,617.55-10,353.29

Finding the Fourth Proportional to 15,660.41, 21,617.55 and 10,353.29

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Solution

The fourth proportional to 15,660.41, 21,617.55 and 10,353.29 is: 14,291.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,660.41 : 21,617.55 = 10,353.29 : x
  2. Step 2: Convert to fraction form
    15,660.41/21,617.55 = 10,353.29/x
  3. Step 3: Cross multiply
    15,660.41x = 21,617.55 × 10,353.29
  4. Step 4: Simplify right side
    15,660.41x = 223,812,656.15
  5. Step 5: Solve for x
    x = 223,812,656.15/15,660.41
  6. Step 6: Final answer
    x = 14,291.63

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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.