Home / 15,724.04-21,699.12-9,011.92

Finding the Fourth Proportional to 15,724.04, 21,699.12 and 9,011.92

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Solution

The fourth proportional to 15,724.04, 21,699.12 and 9,011.92 is: 12,436.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,724.04 : 21,699.12 = 9,011.92 : x
  2. Step 2: Convert to fraction form
    15,724.04/21,699.12 = 9,011.92/x
  3. Step 3: Cross multiply
    15,724.04x = 21,699.12 × 9,011.92
  4. Step 4: Simplify right side
    15,724.04x = 195,550,733.51
  5. Step 5: Solve for x
    x = 195,550,733.51/15,724.04
  6. Step 6: Final answer
    x = 12,436.42

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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.