Home / 11,356.61-15,672.01-6,320.75

Finding the Fourth Proportional to 11,356.61, 15,672.01 and 6,320.75

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Solution

The fourth proportional to 11,356.61, 15,672.01 and 6,320.75 is: 8,722.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,356.61 : 15,672.01 = 6,320.75 : x
  2. Step 2: Convert to fraction form
    11,356.61/15,672.01 = 6,320.75/x
  3. Step 3: Cross multiply
    11,356.61x = 15,672.01 × 6,320.75
  4. Step 4: Simplify right side
    11,356.61x = 99,058,880.59
  5. Step 5: Solve for x
    x = 99,058,880.59/11,356.61
  6. Step 6: Final answer
    x = 8,722.57

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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.