Home / 8,471.16-11,688.84-5,325.12

Finding the Fourth Proportional to 8,471.16, 11,688.84 and 5,325.12

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Solution

The fourth proportional to 8,471.16, 11,688.84 and 5,325.12 is: 7,347.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,471.16 : 11,688.84 = 5,325.12 : x
  2. Step 2: Convert to fraction form
    8,471.16/11,688.84 = 5,325.12/x
  3. Step 3: Cross multiply
    8,471.16x = 11,688.84 × 5,325.12
  4. Step 4: Simplify right side
    8,471.16x = 62,244,475.66
  5. Step 5: Solve for x
    x = 62,244,475.66/8,471.16
  6. Step 6: Final answer
    x = 7,347.81

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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.