Home / 15,861.28-23,802.69-8,471.05

Finding the Fourth Proportional to 15,861.28, 23,802.69 and 8,471.05

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Solution

The fourth proportional to 15,861.28, 23,802.69 and 8,471.05 is: 12,712.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,861.28 : 23,802.69 = 8,471.05 : x
  2. Step 2: Convert to fraction form
    15,861.28/23,802.69 = 8,471.05/x
  3. Step 3: Cross multiply
    15,861.28x = 23,802.69 × 8,471.05
  4. Step 4: Simplify right side
    15,861.28x = 201,633,658.11
  5. Step 5: Solve for x
    x = 201,633,658.11/15,861.28
  6. Step 6: Final answer
    x = 12,712.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.