Home / 15,252.71-21,048.26-8,539.02

Finding the Fourth Proportional to 15,252.71, 21,048.26 and 8,539.02

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Solution

The fourth proportional to 15,252.71, 21,048.26 and 8,539.02 is: 11,783.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,252.71 : 21,048.26 = 8,539.02 : x
  2. Step 2: Convert to fraction form
    15,252.71/21,048.26 = 8,539.02/x
  3. Step 3: Cross multiply
    15,252.71x = 21,048.26 × 8,539.02
  4. Step 4: Simplify right side
    15,252.71x = 179,731,470.41
  5. Step 5: Solve for x
    x = 179,731,470.41/15,252.71
  6. Step 6: Final answer
    x = 11,783.58

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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.