Home / 15,070.48-20,797.42-8,356.22

Finding the Fourth Proportional to 15,070.48, 20,797.42 and 8,356.22

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Solution

The fourth proportional to 15,070.48, 20,797.42 and 8,356.22 is: 11,531.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,070.48 : 20,797.42 = 8,356.22 : x
  2. Step 2: Convert to fraction form
    15,070.48/20,797.42 = 8,356.22/x
  3. Step 3: Cross multiply
    15,070.48x = 20,797.42 × 8,356.22
  4. Step 4: Simplify right side
    15,070.48x = 173,787,816.95
  5. Step 5: Solve for x
    x = 173,787,816.95/15,070.48
  6. Step 6: Final answer
    x = 11,531.67

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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.