Home / 9,118.44-12,583.35-5,140.53

Finding the Fourth Proportional to 9,118.44, 12,583.35 and 5,140.53

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Solution

The fourth proportional to 9,118.44, 12,583.35 and 5,140.53 is: 7,093.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,118.44 : 12,583.35 = 5,140.53 : x
  2. Step 2: Convert to fraction form
    9,118.44/12,583.35 = 5,140.53/x
  3. Step 3: Cross multiply
    9,118.44x = 12,583.35 × 5,140.53
  4. Step 4: Simplify right side
    9,118.44x = 64,685,088.18
  5. Step 5: Solve for x
    x = 64,685,088.18/9,118.44
  6. Step 6: Final answer
    x = 7,093.88

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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.