Home / 15,554.29-21,465.39-8,480.83

Finding the Fourth Proportional to 15,554.29, 21,465.39 and 8,480.83

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Solution

The fourth proportional to 15,554.29, 21,465.39 and 8,480.83 is: 11,703.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,554.29 : 21,465.39 = 8,480.83 : x
  2. Step 2: Convert to fraction form
    15,554.29/21,465.39 = 8,480.83/x
  3. Step 3: Cross multiply
    15,554.29x = 21,465.39 × 8,480.83
  4. Step 4: Simplify right side
    15,554.29x = 182,044,323.47
  5. Step 5: Solve for x
    x = 182,044,323.47/15,554.29
  6. Step 6: Final answer
    x = 11,703.80

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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.