Home / 9,318.48-12,859.44-5,126.72

Finding the Fourth Proportional to 9,318.48, 12,859.44 and 5,126.72

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Solution

The fourth proportional to 9,318.48, 12,859.44 and 5,126.72 is: 7,074.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,318.48 : 12,859.44 = 5,126.72 : x
  2. Step 2: Convert to fraction form
    9,318.48/12,859.44 = 5,126.72/x
  3. Step 3: Cross multiply
    9,318.48x = 12,859.44 × 5,126.72
  4. Step 4: Simplify right side
    9,318.48x = 65,926,748.24
  5. Step 5: Solve for x
    x = 65,926,748.24/9,318.48
  6. Step 6: Final answer
    x = 7,074.84

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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.