Home / 18,219.08-25,136.51-10,259.76

Finding the Fourth Proportional to 18,219.08, 25,136.51 and 10,259.76

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Solution

The fourth proportional to 18,219.08, 25,136.51 and 10,259.76 is: 14,155.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,219.08 : 25,136.51 = 10,259.76 : x
  2. Step 2: Convert to fraction form
    18,219.08/25,136.51 = 10,259.76/x
  3. Step 3: Cross multiply
    18,219.08x = 25,136.51 × 10,259.76
  4. Step 4: Simplify right side
    18,219.08x = 257,894,508.54
  5. Step 5: Solve for x
    x = 257,894,508.54/18,219.08
  6. Step 6: Final answer
    x = 14,155.19

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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.