Home / 15,409.47-21,264.73-8,694.93

Finding the Fourth Proportional to 15,409.47, 21,264.73 and 8,694.93

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Solution

The fourth proportional to 15,409.47, 21,264.73 and 8,694.93 is: 11,998.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,409.47 : 21,264.73 = 8,694.93 : x
  2. Step 2: Convert to fraction form
    15,409.47/21,264.73 = 8,694.93/x
  3. Step 3: Cross multiply
    15,409.47x = 21,264.73 × 8,694.93
  4. Step 4: Simplify right side
    15,409.47x = 184,895,277.21
  5. Step 5: Solve for x
    x = 184,895,277.21/15,409.47
  6. Step 6: Final answer
    x = 11,998.81

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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.