Home / 15,074.02-20,800.79-8,359.63

Finding the Fourth Proportional to 15,074.02, 20,800.79 and 8,359.63

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Solution

The fourth proportional to 15,074.02, 20,800.79 and 8,359.63 is: 11,535.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,074.02 : 20,800.79 = 8,359.63 : x
  2. Step 2: Convert to fraction form
    15,074.02/20,800.79 = 8,359.63/x
  3. Step 3: Cross multiply
    15,074.02x = 20,800.79 × 8,359.63
  4. Step 4: Simplify right side
    15,074.02x = 173,886,814.31
  5. Step 5: Solve for x
    x = 173,886,814.31/15,074.02
  6. Step 6: Final answer
    x = 11,535.53

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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.