Home / 9,159.74-12,640.37-5,126.57

Finding the Fourth Proportional to 9,159.74, 12,640.37 and 5,126.57

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Solution

The fourth proportional to 9,159.74, 12,640.37 and 5,126.57 is: 7,074.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,159.74 : 12,640.37 = 5,126.57 : x
  2. Step 2: Convert to fraction form
    9,159.74/12,640.37 = 5,126.57/x
  3. Step 3: Cross multiply
    9,159.74x = 12,640.37 × 5,126.57
  4. Step 4: Simplify right side
    9,159.74x = 64,801,741.63
  5. Step 5: Solve for x
    x = 64,801,741.63/9,159.74
  6. Step 6: Final answer
    x = 7,074.63

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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.