Home / 15,724.98-21,699.63-9,009.27

Finding the Fourth Proportional to 15,724.98, 21,699.63 and 9,009.27

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Solution

The fourth proportional to 15,724.98, 21,699.63 and 9,009.27 is: 12,432.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,724.98 : 21,699.63 = 9,009.27 : x
  2. Step 2: Convert to fraction form
    15,724.98/21,699.63 = 9,009.27/x
  3. Step 3: Cross multiply
    15,724.98x = 21,699.63 × 9,009.27
  4. Step 4: Simplify right side
    15,724.98x = 195,497,825.57
  5. Step 5: Solve for x
    x = 195,497,825.57/15,724.98
  6. Step 6: Final answer
    x = 12,432.31

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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.