Home / 8,808.81-12,156.31-4,775.77

Finding the Fourth Proportional to 8,808.81, 12,156.31 and 4,775.77

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Solution

The fourth proportional to 8,808.81, 12,156.31 and 4,775.77 is: 6,590.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,808.81 : 12,156.31 = 4,775.77 : x
  2. Step 2: Convert to fraction form
    8,808.81/12,156.31 = 4,775.77/x
  3. Step 3: Cross multiply
    8,808.81x = 12,156.31 × 4,775.77
  4. Step 4: Simplify right side
    8,808.81x = 58,055,740.61
  5. Step 5: Solve for x
    x = 58,055,740.61/8,808.81
  6. Step 6: Final answer
    x = 6,590.65

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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.