Home / 15,326.49-21,150.66-8,612.13

Finding the Fourth Proportional to 15,326.49, 21,150.66 and 8,612.13

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Solution

The fourth proportional to 15,326.49, 21,150.66 and 8,612.13 is: 11,884.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,326.49 : 21,150.66 = 8,612.13 : x
  2. Step 2: Convert to fraction form
    15,326.49/21,150.66 = 8,612.13/x
  3. Step 3: Cross multiply
    15,326.49x = 21,150.66 × 8,612.13
  4. Step 4: Simplify right side
    15,326.49x = 182,152,233.51
  5. Step 5: Solve for x
    x = 182,152,233.51/15,326.49
  6. Step 6: Final answer
    x = 11,884.80

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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.