Home / 8,749.12-12,066.96-5,605.60

Finding the Fourth Proportional to 8,749.12, 12,066.96 and 5,605.60

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Solution

The fourth proportional to 8,749.12, 12,066.96 and 5,605.60 is: 7,731.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,749.12 : 12,066.96 = 5,605.60 : x
  2. Step 2: Convert to fraction form
    8,749.12/12,066.96 = 5,605.60/x
  3. Step 3: Cross multiply
    8,749.12x = 12,066.96 × 5,605.60
  4. Step 4: Simplify right side
    8,749.12x = 67,642,550.98
  5. Step 5: Solve for x
    x = 67,642,550.98/8,749.12
  6. Step 6: Final answer
    x = 7,731.35

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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.