Home / 9,119.04-12,583.32-5,140.76

Finding the Fourth Proportional to 9,119.04, 12,583.32 and 5,140.76

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Solution

The fourth proportional to 9,119.04, 12,583.32 and 5,140.76 is: 7,093.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,119.04 : 12,583.32 = 5,140.76 : x
  2. Step 2: Convert to fraction form
    9,119.04/12,583.32 = 5,140.76/x
  3. Step 3: Cross multiply
    9,119.04x = 12,583.32 × 5,140.76
  4. Step 4: Simplify right side
    9,119.04x = 64,687,828.12
  5. Step 5: Solve for x
    x = 64,687,828.12/9,119.04
  6. Step 6: Final answer
    x = 7,093.71

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Double scale
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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.