Home / 15,544.49-21,451.41-8,470.93

Finding the Fourth Proportional to 15,544.49, 21,451.41 and 8,470.93

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Solution

The fourth proportional to 15,544.49, 21,451.41 and 8,470.93 is: 11,689.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,544.49 : 21,451.41 = 8,470.93 : x
  2. Step 2: Convert to fraction form
    15,544.49/21,451.41 = 8,470.93/x
  3. Step 3: Cross multiply
    15,544.49x = 21,451.41 × 8,470.93
  4. Step 4: Simplify right side
    15,544.49x = 181,713,392.51
  5. Step 5: Solve for x
    x = 181,713,392.51/15,544.49
  6. Step 6: Final answer
    x = 11,689.89

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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.