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Finding the Fourth Proportional to 6,482.49, 8,950.14 and 4,987.77

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Solution

The fourth proportional to 6,482.49, 8,950.14 and 4,987.77 is: 6,886.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,482.49 : 8,950.14 = 4,987.77 : x
  2. Step 2: Convert to fraction form
    6,482.49/8,950.14 = 4,987.77/x
  3. Step 3: Cross multiply
    6,482.49x = 8,950.14 × 4,987.77
  4. Step 4: Simplify right side
    6,482.49x = 44,641,239.79
  5. Step 5: Solve for x
    x = 44,641,239.79/6,482.49
  6. Step 6: Final answer
    x = 6,886.43

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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.