Home / 15,993.81-22,051.85-13,151.25

Finding the Fourth Proportional to 15,993.81, 22,051.85 and 13,151.25

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Solution

The fourth proportional to 15,993.81, 22,051.85 and 13,151.25 is: 18,132.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,993.81 : 22,051.85 = 13,151.25 : x
  2. Step 2: Convert to fraction form
    15,993.81/22,051.85 = 13,151.25/x
  3. Step 3: Cross multiply
    15,993.81x = 22,051.85 × 13,151.25
  4. Step 4: Simplify right side
    15,993.81x = 290,009,326.56
  5. Step 5: Solve for x
    x = 290,009,326.56/15,993.81
  6. Step 6: Final answer
    x = 18,132.60

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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.