Home / 19,617.78-29,428.74-6,470.22

Finding the Fourth Proportional to 19,617.78, 29,428.74 and 6,470.22

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Solution

The fourth proportional to 19,617.78, 29,428.74 and 6,470.22 is: 9,706.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,617.78 : 29,428.74 = 6,470.22 : x
  2. Step 2: Convert to fraction form
    19,617.78/29,428.74 = 6,470.22/x
  3. Step 3: Cross multiply
    19,617.78x = 29,428.74 × 6,470.22
  4. Step 4: Simplify right side
    19,617.78x = 190,410,422.12
  5. Step 5: Solve for x
    x = 190,410,422.12/19,617.78
  6. Step 6: Final answer
    x = 9,706.01

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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.