Home / 15,247.90-21,042.08-8,533.50

Finding the Fourth Proportional to 15,247.90, 21,042.08 and 8,533.50

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Solution

The fourth proportional to 15,247.90, 21,042.08 and 8,533.50 is: 11,776.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,247.90 : 21,042.08 = 8,533.50 : x
  2. Step 2: Convert to fraction form
    15,247.90/21,042.08 = 8,533.50/x
  3. Step 3: Cross multiply
    15,247.90x = 21,042.08 × 8,533.50
  4. Step 4: Simplify right side
    15,247.90x = 179,562,589.68
  5. Step 5: Solve for x
    x = 179,562,589.68/15,247.90
  6. Step 6: Final answer
    x = 11,776.22

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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.