Home / 9,471.19-13,070.42-5,278.99

Finding the Fourth Proportional to 9,471.19, 13,070.42 and 5,278.99

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Solution

The fourth proportional to 9,471.19, 13,070.42 and 5,278.99 is: 7,285.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,471.19 : 13,070.42 = 5,278.99 : x
  2. Step 2: Convert to fraction form
    9,471.19/13,070.42 = 5,278.99/x
  3. Step 3: Cross multiply
    9,471.19x = 13,070.42 × 5,278.99
  4. Step 4: Simplify right side
    9,471.19x = 68,998,616.48
  5. Step 5: Solve for x
    x = 68,998,616.48/9,471.19
  6. Step 6: Final answer
    x = 7,285.11

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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.