Home / 8,707.77-12,016.96-4,729.12

Finding the Fourth Proportional to 8,707.77, 12,016.96 and 4,729.12

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Solution

The fourth proportional to 8,707.77, 12,016.96 and 4,729.12 is: 6,526.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,707.77 : 12,016.96 = 4,729.12 : x
  2. Step 2: Convert to fraction form
    8,707.77/12,016.96 = 4,729.12/x
  3. Step 3: Cross multiply
    8,707.77x = 12,016.96 × 4,729.12
  4. Step 4: Simplify right side
    8,707.77x = 56,829,604.01
  5. Step 5: Solve for x
    x = 56,829,604.01/8,707.77
  6. Step 6: Final answer
    x = 6,526.31

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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.