Home / 11,355.95-15,671.94-6,320.15

Finding the Fourth Proportional to 11,355.95, 15,671.94 and 6,320.15

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Solution

The fourth proportional to 11,355.95, 15,671.94 and 6,320.15 is: 8,722.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,355.95 : 15,671.94 = 6,320.15 : x
  2. Step 2: Convert to fraction form
    11,355.95/15,671.94 = 6,320.15/x
  3. Step 3: Cross multiply
    11,355.95x = 15,671.94 × 6,320.15
  4. Step 4: Simplify right side
    11,355.95x = 99,049,074.47
  5. Step 5: Solve for x
    x = 99,049,074.47/11,355.95
  6. Step 6: Final answer
    x = 8,722.22

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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.