Home / 15,113.33-20,854.52-8,400.35

Finding the Fourth Proportional to 15,113.33, 20,854.52 and 8,400.35

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Solution

The fourth proportional to 15,113.33, 20,854.52 and 8,400.35 is: 11,591.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,113.33 : 20,854.52 = 8,400.35 : x
  2. Step 2: Convert to fraction form
    15,113.33/20,854.52 = 8,400.35/x
  3. Step 3: Cross multiply
    15,113.33x = 20,854.52 × 8,400.35
  4. Step 4: Simplify right side
    15,113.33x = 175,185,225.08
  5. Step 5: Solve for x
    x = 175,185,225.08/15,113.33
  6. Step 6: Final answer
    x = 11,591.44

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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.