Home / 6,931.78-10,382.10-5,360.74

Finding the Fourth Proportional to 6,931.78, 10,382.10 and 5,360.74

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Solution

The fourth proportional to 6,931.78, 10,382.10 and 5,360.74 is: 8,029.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,931.78 : 10,382.10 = 5,360.74 : x
  2. Step 2: Convert to fraction form
    6,931.78/10,382.10 = 5,360.74/x
  3. Step 3: Cross multiply
    6,931.78x = 10,382.10 × 5,360.74
  4. Step 4: Simplify right side
    6,931.78x = 55,655,738.75
  5. Step 5: Solve for x
    x = 55,655,738.75/6,931.78
  6. Step 6: Final answer
    x = 8,029.07

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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.