Home / 15,845.42-21,863.40-10,742.74

Finding the Fourth Proportional to 15,845.42, 21,863.40 and 10,742.74

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Solution

The fourth proportional to 15,845.42, 21,863.40 and 10,742.74 is: 14,822.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,845.42 : 21,863.40 = 10,742.74 : x
  2. Step 2: Convert to fraction form
    15,845.42/21,863.40 = 10,742.74/x
  3. Step 3: Cross multiply
    15,845.42x = 21,863.40 × 10,742.74
  4. Step 4: Simplify right side
    15,845.42x = 234,872,821.72
  5. Step 5: Solve for x
    x = 234,872,821.72/15,845.42
  6. Step 6: Final answer
    x = 14,822.76

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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.