Home / 8,423.90-11,623.20-4,886.66

Finding the Fourth Proportional to 8,423.90, 11,623.20 and 4,886.66

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Solution

The fourth proportional to 8,423.90, 11,623.20 and 4,886.66 is: 6,742.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,423.90 : 11,623.20 = 4,886.66 : x
  2. Step 2: Convert to fraction form
    8,423.90/11,623.20 = 4,886.66/x
  3. Step 3: Cross multiply
    8,423.90x = 11,623.20 × 4,886.66
  4. Step 4: Simplify right side
    8,423.90x = 56,798,626.51
  5. Step 5: Solve for x
    x = 56,798,626.51/8,423.90
  6. Step 6: Final answer
    x = 6,742.56

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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.