Home / 8,729.11-12,045.88-4,750.12

Finding the Fourth Proportional to 8,729.11, 12,045.88 and 4,750.12

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Solution

The fourth proportional to 8,729.11, 12,045.88 and 4,750.12 is: 6,555.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,729.11 : 12,045.88 = 4,750.12 : x
  2. Step 2: Convert to fraction form
    8,729.11/12,045.88 = 4,750.12/x
  3. Step 3: Cross multiply
    8,729.11x = 12,045.88 × 4,750.12
  4. Step 4: Simplify right side
    8,729.11x = 57,219,375.51
  5. Step 5: Solve for x
    x = 57,219,375.51/8,729.11
  6. Step 6: Final answer
    x = 6,555.01

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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.