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Finding the Fourth Proportional to 7,173.48, 9,887.22 and 5,471.40

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Solution

The fourth proportional to 7,173.48, 9,887.22 and 5,471.40 is: 7,541.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,173.48 : 9,887.22 = 5,471.40 : x
  2. Step 2: Convert to fraction form
    7,173.48/9,887.22 = 5,471.40/x
  3. Step 3: Cross multiply
    7,173.48x = 9,887.22 × 5,471.40
  4. Step 4: Simplify right side
    7,173.48x = 54,096,935.51
  5. Step 5: Solve for x
    x = 54,096,935.51/7,173.48
  6. Step 6: Final answer
    x = 7,541.24

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Half 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.