Home / 7,129.60-9,841.83-5,256.07

Finding the Fourth Proportional to 7,129.60, 9,841.83 and 5,256.07

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Solution

The fourth proportional to 7,129.60, 9,841.83 and 5,256.07 is: 7,255.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,129.60 : 9,841.83 = 5,256.07 : x
  2. Step 2: Convert to fraction form
    7,129.60/9,841.83 = 5,256.07/x
  3. Step 3: Cross multiply
    7,129.60x = 9,841.83 × 5,256.07
  4. Step 4: Simplify right side
    7,129.60x = 51,729,347.41
  5. Step 5: Solve for x
    x = 51,729,347.41/7,129.60
  6. Step 6: Final answer
    x = 7,255.57

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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.