Home / 13,219.65-19,824.33-6,641.25

Finding the Fourth Proportional to 13,219.65, 19,824.33 and 6,641.25

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Solution

The fourth proportional to 13,219.65, 19,824.33 and 6,641.25 is: 9,959.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,219.65 : 19,824.33 = 6,641.25 : x
  2. Step 2: Convert to fraction form
    13,219.65/19,824.33 = 6,641.25/x
  3. Step 3: Cross multiply
    13,219.65x = 19,824.33 × 6,641.25
  4. Step 4: Simplify right side
    13,219.65x = 131,658,331.61
  5. Step 5: Solve for x
    x = 131,658,331.61/13,219.65
  6. Step 6: Final answer
    x = 9,959.29

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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.