Home / 8,913.78-12,301.47-4,935.33

Finding the Fourth Proportional to 8,913.78, 12,301.47 and 4,935.33

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Solution

The fourth proportional to 8,913.78, 12,301.47 and 4,935.33 is: 6,811.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,913.78 : 12,301.47 = 4,935.33 : x
  2. Step 2: Convert to fraction form
    8,913.78/12,301.47 = 4,935.33/x
  3. Step 3: Cross multiply
    8,913.78x = 12,301.47 × 4,935.33
  4. Step 4: Simplify right side
    8,913.78x = 60,711,813.94
  5. Step 5: Solve for x
    x = 60,711,813.94/8,913.78
  6. Step 6: Final answer
    x = 6,811.01

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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.