Home / 18,741.12-25,841.60-12,776.32

Finding the Fourth Proportional to 18,741.12, 25,841.60 and 12,776.32

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Solution

The fourth proportional to 18,741.12, 25,841.60 and 12,776.32 is: 17,616.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,741.12 : 25,841.60 = 12,776.32 : x
  2. Step 2: Convert to fraction form
    18,741.12/25,841.60 = 12,776.32/x
  3. Step 3: Cross multiply
    18,741.12x = 25,841.60 × 12,776.32
  4. Step 4: Simplify right side
    18,741.12x = 330,160,550.91
  5. Step 5: Solve for x
    x = 330,160,550.91/18,741.12
  6. Step 6: Final answer
    x = 17,616.91

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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.