Home / 15,788.02-21,791.10-9,824.26

Finding the Fourth Proportional to 15,788.02, 21,791.10 and 9,824.26

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Solution

The fourth proportional to 15,788.02, 21,791.10 and 9,824.26 is: 13,559.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,788.02 : 21,791.10 = 9,824.26 : x
  2. Step 2: Convert to fraction form
    15,788.02/21,791.10 = 9,824.26/x
  3. Step 3: Cross multiply
    15,788.02x = 21,791.10 × 9,824.26
  4. Step 4: Simplify right side
    15,788.02x = 214,081,432.09
  5. Step 5: Solve for x
    x = 214,081,432.09/15,788.02
  6. Step 6: Final answer
    x = 13,559.74

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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.