Home / 15,813.90-21,833.25-9,854.33

Finding the Fourth Proportional to 15,813.90, 21,833.25 and 9,854.33

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Solution

The fourth proportional to 15,813.90, 21,833.25 and 9,854.33 is: 13,605.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,813.90 : 21,833.25 = 9,854.33 : x
  2. Step 2: Convert to fraction form
    15,813.90/21,833.25 = 9,854.33/x
  3. Step 3: Cross multiply
    15,813.90x = 21,833.25 × 9,854.33
  4. Step 4: Simplify right side
    15,813.90x = 215,151,904.35
  5. Step 5: Solve for x
    x = 215,151,904.35/15,813.90
  6. Step 6: Final answer
    x = 13,605.24

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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.