Home / 7,477.43-10,318.97-4,120.19

Finding the Fourth Proportional to 7,477.43, 10,318.97 and 4,120.19

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Solution

The fourth proportional to 7,477.43, 10,318.97 and 4,120.19 is: 5,685.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,477.43 : 10,318.97 = 4,120.19 : x
  2. Step 2: Convert to fraction form
    7,477.43/10,318.97 = 4,120.19/x
  3. Step 3: Cross multiply
    7,477.43x = 10,318.97 × 4,120.19
  4. Step 4: Simplify right side
    7,477.43x = 42,516,117.00
  5. Step 5: Solve for x
    x = 42,516,117.00/7,477.43
  6. Step 6: Final answer
    x = 5,685.93

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Half scale
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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.