Home / 15,319.22-21,150.31-10,222.01

Finding the Fourth Proportional to 15,319.22, 21,150.31 and 10,222.01

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Solution

The fourth proportional to 15,319.22, 21,150.31 and 10,222.01 is: 14,112.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,319.22 : 21,150.31 = 10,222.01 : x
  2. Step 2: Convert to fraction form
    15,319.22/21,150.31 = 10,222.01/x
  3. Step 3: Cross multiply
    15,319.22x = 21,150.31 × 10,222.01
  4. Step 4: Simplify right side
    15,319.22x = 216,198,559.26
  5. Step 5: Solve for x
    x = 216,198,559.26/15,319.22
  6. Step 6: Final answer
    x = 14,112.90

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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.