Home / 15,845.73-21,865.63-9,471.07

Finding the Fourth Proportional to 15,845.73, 21,865.63 and 9,471.07

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Solution

The fourth proportional to 15,845.73, 21,865.63 and 9,471.07 is: 13,069.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,845.73 : 21,865.63 = 9,471.07 : x
  2. Step 2: Convert to fraction form
    15,845.73/21,865.63 = 9,471.07/x
  3. Step 3: Cross multiply
    15,845.73x = 21,865.63 × 9,471.07
  4. Step 4: Simplify right side
    15,845.73x = 207,090,912.32
  5. Step 5: Solve for x
    x = 207,090,912.32/15,845.73
  6. Step 6: Final answer
    x = 13,069.19

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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.