Home / 18,371.61-25,358.55-10,817.34

Finding the Fourth Proportional to 18,371.61, 25,358.55 and 10,817.34

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Solution

The fourth proportional to 18,371.61, 25,358.55 and 10,817.34 is: 14,931.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,371.61 : 25,358.55 = 10,817.34 : x
  2. Step 2: Convert to fraction form
    18,371.61/25,358.55 = 10,817.34/x
  3. Step 3: Cross multiply
    18,371.61x = 25,358.55 × 10,817.34
  4. Step 4: Simplify right side
    18,371.61x = 274,312,057.26
  5. Step 5: Solve for x
    x = 274,312,057.26/18,371.61
  6. Step 6: Final answer
    x = 14,931.30

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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.