Home / 18,655.53-25,746.44-13,931.61

Finding the Fourth Proportional to 18,655.53, 25,746.44 and 13,931.61

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Solution

The fourth proportional to 18,655.53, 25,746.44 and 13,931.61 is: 19,226.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,655.53 : 25,746.44 = 13,931.61 : x
  2. Step 2: Convert to fraction form
    18,655.53/25,746.44 = 13,931.61/x
  3. Step 3: Cross multiply
    18,655.53x = 25,746.44 × 13,931.61
  4. Step 4: Simplify right side
    18,655.53x = 358,689,299.25
  5. Step 5: Solve for x
    x = 358,689,299.25/18,655.53
  6. Step 6: Final answer
    x = 19,226.97

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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.