Home / 15,614.73-21,555.36-9,957.07

Finding the Fourth Proportional to 15,614.73, 21,555.36 and 9,957.07

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Solution

The fourth proportional to 15,614.73, 21,555.36 and 9,957.07 is: 13,745.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,614.73 : 21,555.36 = 9,957.07 : x
  2. Step 2: Convert to fraction form
    15,614.73/21,555.36 = 9,957.07/x
  3. Step 3: Cross multiply
    15,614.73x = 21,555.36 × 9,957.07
  4. Step 4: Simplify right side
    15,614.73x = 214,628,228.40
  5. Step 5: Solve for x
    x = 214,628,228.40/15,614.73
  6. Step 6: Final answer
    x = 13,745.24

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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.