Home / 8,623.89-11,901.21-4,847.40

Finding the Fourth Proportional to 8,623.89, 11,901.21 and 4,847.40

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Solution

The fourth proportional to 8,623.89, 11,901.21 and 4,847.40 is: 6,689.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,623.89 : 11,901.21 = 4,847.40 : x
  2. Step 2: Convert to fraction form
    8,623.89/11,901.21 = 4,847.40/x
  3. Step 3: Cross multiply
    8,623.89x = 11,901.21 × 4,847.40
  4. Step 4: Simplify right side
    8,623.89x = 57,689,925.35
  5. Step 5: Solve for x
    x = 57,689,925.35/8,623.89
  6. Step 6: Final answer
    x = 6,689.55

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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.