Home / 7,724.40-10,661.72-5,334.77

Finding the Fourth Proportional to 7,724.40, 10,661.72 and 5,334.77

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Solution

The fourth proportional to 7,724.40, 10,661.72 and 5,334.77 is: 7,363.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,724.40 : 10,661.72 = 5,334.77 : x
  2. Step 2: Convert to fraction form
    7,724.40/10,661.72 = 5,334.77/x
  3. Step 3: Cross multiply
    7,724.40x = 10,661.72 × 5,334.77
  4. Step 4: Simplify right side
    7,724.40x = 56,877,744.02
  5. Step 5: Solve for x
    x = 56,877,744.02/7,724.40
  6. Step 6: Final answer
    x = 7,363.39

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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.