Home / 15,799.90-21,806.73-9,426.94

Finding the Fourth Proportional to 15,799.90, 21,806.73 and 9,426.94

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Solution

The fourth proportional to 15,799.90, 21,806.73 and 9,426.94 is: 13,010.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,799.90 : 21,806.73 = 9,426.94 : x
  2. Step 2: Convert to fraction form
    15,799.90/21,806.73 = 9,426.94/x
  3. Step 3: Cross multiply
    15,799.90x = 21,806.73 × 9,426.94
  4. Step 4: Simplify right side
    15,799.90x = 205,570,735.31
  5. Step 5: Solve for x
    x = 205,570,735.31/15,799.90
  6. Step 6: Final answer
    x = 13,010.89

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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.