Home / 15,698.71-21,665.28-8,625.22

Finding the Fourth Proportional to 15,698.71, 21,665.28 and 8,625.22

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Solution

The fourth proportional to 15,698.71, 21,665.28 and 8,625.22 is: 11,903.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,698.71 : 21,665.28 = 8,625.22 : x
  2. Step 2: Convert to fraction form
    15,698.71/21,665.28 = 8,625.22/x
  3. Step 3: Cross multiply
    15,698.71x = 21,665.28 × 8,625.22
  4. Step 4: Simplify right side
    15,698.71x = 186,867,806.36
  5. Step 5: Solve for x
    x = 186,867,806.36/15,698.71
  6. Step 6: Final answer
    x = 11,903.39

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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.