Home / 15,476.66-21,357.47-8,403.09

Finding the Fourth Proportional to 15,476.66, 21,357.47 and 8,403.09

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Solution

The fourth proportional to 15,476.66, 21,357.47 and 8,403.09 is: 11,596.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,476.66 : 21,357.47 = 8,403.09 : x
  2. Step 2: Convert to fraction form
    15,476.66/21,357.47 = 8,403.09/x
  3. Step 3: Cross multiply
    15,476.66x = 21,357.47 × 8,403.09
  4. Step 4: Simplify right side
    15,476.66x = 179,468,763.59
  5. Step 5: Solve for x
    x = 179,468,763.59/15,476.66
  6. Step 6: Final answer
    x = 11,596.09

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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.