Home / 19,659.51-29,450.25-9,278.55

Finding the Fourth Proportional to 19,659.51, 29,450.25 and 9,278.55

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Solution

The fourth proportional to 19,659.51, 29,450.25 and 9,278.55 is: 13,899.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,659.51 : 29,450.25 = 9,278.55 : x
  2. Step 2: Convert to fraction form
    19,659.51/29,450.25 = 9,278.55/x
  3. Step 3: Cross multiply
    19,659.51x = 29,450.25 × 9,278.55
  4. Step 4: Simplify right side
    19,659.51x = 273,255,617.14
  5. Step 5: Solve for x
    x = 273,255,617.14/19,659.51
  6. Step 6: Final answer
    x = 13,899.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.