Home / 15,070.83-20,795.81-8,356.39

Finding the Fourth Proportional to 15,070.83, 20,795.81 and 8,356.39

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Solution

The fourth proportional to 15,070.83, 20,795.81 and 8,356.39 is: 11,530.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,070.83 : 20,795.81 = 8,356.39 : x
  2. Step 2: Convert to fraction form
    15,070.83/20,795.81 = 8,356.39/x
  3. Step 3: Cross multiply
    15,070.83x = 20,795.81 × 8,356.39
  4. Step 4: Simplify right side
    15,070.83x = 173,777,898.73
  5. Step 5: Solve for x
    x = 173,777,898.73/15,070.83
  6. Step 6: Final answer
    x = 11,530.75

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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.