Home / 8,468.51-11,688.18-4,885.78

Finding the Fourth Proportional to 8,468.51, 11,688.18 and 4,885.78

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Solution

The fourth proportional to 8,468.51, 11,688.18 and 4,885.78 is: 6,743.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,468.51 : 11,688.18 = 4,885.78 : x
  2. Step 2: Convert to fraction form
    8,468.51/11,688.18 = 4,885.78/x
  3. Step 3: Cross multiply
    8,468.51x = 11,688.18 × 4,885.78
  4. Step 4: Simplify right side
    8,468.51x = 57,105,903.94
  5. Step 5: Solve for x
    x = 57,105,903.94/8,468.51
  6. Step 6: Final answer
    x = 6,743.32

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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.