Home / 7,812.04-10,780.74-5,577.71

Finding the Fourth Proportional to 7,812.04, 10,780.74 and 5,577.71

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Solution

The fourth proportional to 7,812.04, 10,780.74 and 5,577.71 is: 7,697.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,812.04 : 10,780.74 = 5,577.71 : x
  2. Step 2: Convert to fraction form
    7,812.04/10,780.74 = 5,577.71/x
  3. Step 3: Cross multiply
    7,812.04x = 10,780.74 × 5,577.71
  4. Step 4: Simplify right side
    7,812.04x = 60,131,787.40
  5. Step 5: Solve for x
    x = 60,131,787.40/7,812.04
  6. Step 6: Final answer
    x = 7,697.33

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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.