Home / 18,270.72-25,213.14-10,312.74

Finding the Fourth Proportional to 18,270.72, 25,213.14 and 10,312.74

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Solution

The fourth proportional to 18,270.72, 25,213.14 and 10,312.74 is: 14,231.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,270.72 : 25,213.14 = 10,312.74 : x
  2. Step 2: Convert to fraction form
    18,270.72/25,213.14 = 10,312.74/x
  3. Step 3: Cross multiply
    18,270.72x = 25,213.14 × 10,312.74
  4. Step 4: Simplify right side
    18,270.72x = 260,016,557.40
  5. Step 5: Solve for x
    x = 260,016,557.40/18,270.72
  6. Step 6: Final answer
    x = 14,231.33

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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.