Home / 11,356.30-15,671.58-6,320.45

Finding the Fourth Proportional to 11,356.30, 15,671.58 and 6,320.45

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Solution

The fourth proportional to 11,356.30, 15,671.58 and 6,320.45 is: 8,722.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,356.30 : 15,671.58 = 6,320.45 : x
  2. Step 2: Convert to fraction form
    11,356.30/15,671.58 = 6,320.45/x
  3. Step 3: Cross multiply
    11,356.30x = 15,671.58 × 6,320.45
  4. Step 4: Simplify right side
    11,356.30x = 99,051,365.14
  5. Step 5: Solve for x
    x = 99,051,365.14/11,356.30
  6. Step 6: Final answer
    x = 8,722.15

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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.