Home / 8,707.40-12,016.22-4,728.58

Finding the Fourth Proportional to 8,707.40, 12,016.22 and 4,728.58

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Solution

The fourth proportional to 8,707.40, 12,016.22 and 4,728.58 is: 6,525.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,707.40 : 12,016.22 = 4,728.58 : x
  2. Step 2: Convert to fraction form
    8,707.40/12,016.22 = 4,728.58/x
  3. Step 3: Cross multiply
    8,707.40x = 12,016.22 × 4,728.58
  4. Step 4: Simplify right side
    8,707.40x = 56,819,603.88
  5. Step 5: Solve for x
    x = 56,819,603.88/8,707.40
  6. Step 6: Final answer
    x = 6,525.44

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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.