Home / 8,557.21-11,808.84-4,780.74

Finding the Fourth Proportional to 8,557.21, 11,808.84 and 4,780.74

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Solution

The fourth proportional to 8,557.21, 11,808.84 and 4,780.74 is: 6,597.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,557.21 : 11,808.84 = 4,780.74 : x
  2. Step 2: Convert to fraction form
    8,557.21/11,808.84 = 4,780.74/x
  3. Step 3: Cross multiply
    8,557.21x = 11,808.84 × 4,780.74
  4. Step 4: Simplify right side
    8,557.21x = 56,454,962.64
  5. Step 5: Solve for x
    x = 56,454,962.64/8,557.21
  6. Step 6: Final answer
    x = 6,597.36

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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.