Home / 7,712.50-11,570.79-4,426.75

Finding the Fourth Proportional to 7,712.50, 11,570.79 and 4,426.75

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Solution

The fourth proportional to 7,712.50, 11,570.79 and 4,426.75 is: 6,641.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,712.50 : 11,570.79 = 4,426.75 : x
  2. Step 2: Convert to fraction form
    7,712.50/11,570.79 = 4,426.75/x
  3. Step 3: Cross multiply
    7,712.50x = 11,570.79 × 4,426.75
  4. Step 4: Simplify right side
    7,712.50x = 51,220,994.63
  5. Step 5: Solve for x
    x = 51,220,994.63/7,712.50
  6. Step 6: Final answer
    x = 6,641.30

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.