Home / 11,356.07-15,671.45-6,320.50

Finding the Fourth Proportional to 11,356.07, 15,671.45 and 6,320.50

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Solution

The fourth proportional to 11,356.07, 15,671.45 and 6,320.50 is: 8,722.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,356.07 : 15,671.45 = 6,320.50 : x
  2. Step 2: Convert to fraction form
    11,356.07/15,671.45 = 6,320.50/x
  3. Step 3: Cross multiply
    11,356.07x = 15,671.45 × 6,320.50
  4. Step 4: Simplify right side
    11,356.07x = 99,051,376.35
  5. Step 5: Solve for x
    x = 99,051,376.35/11,356.07
  6. Step 6: Final answer
    x = 8,722.33

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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.