Home / 19,515.61-29,278.88-7,837.03

Finding the Fourth Proportional to 19,515.61, 29,278.88 and 7,837.03

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Solution

The fourth proportional to 19,515.61, 29,278.88 and 7,837.03 is: 11,757.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,515.61 : 29,278.88 = 7,837.03 : x
  2. Step 2: Convert to fraction form
    19,515.61/29,278.88 = 7,837.03/x
  3. Step 3: Cross multiply
    19,515.61x = 29,278.88 × 7,837.03
  4. Step 4: Simplify right side
    19,515.61x = 229,459,460.93
  5. Step 5: Solve for x
    x = 229,459,460.93/19,515.61
  6. Step 6: Final answer
    x = 11,757.74

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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.