Home / 7,712.78-10,643.62-4,176.06

Finding the Fourth Proportional to 7,712.78, 10,643.62 and 4,176.06

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Solution

The fourth proportional to 7,712.78, 10,643.62 and 4,176.06 is: 5,762.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,712.78 : 10,643.62 = 4,176.06 : x
  2. Step 2: Convert to fraction form
    7,712.78/10,643.62 = 4,176.06/x
  3. Step 3: Cross multiply
    7,712.78x = 10,643.62 × 4,176.06
  4. Step 4: Simplify right side
    7,712.78x = 44,448,395.74
  5. Step 5: Solve for x
    x = 44,448,395.74/7,712.78
  6. Step 6: Final answer
    x = 5,762.95

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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.