Home / 9,785.52-13,503.65-5,309.12

Finding the Fourth Proportional to 9,785.52, 13,503.65 and 5,309.12

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Solution

The fourth proportional to 9,785.52, 13,503.65 and 5,309.12 is: 7,326.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,785.52 : 13,503.65 = 5,309.12 : x
  2. Step 2: Convert to fraction form
    9,785.52/13,503.65 = 5,309.12/x
  3. Step 3: Cross multiply
    9,785.52x = 13,503.65 × 5,309.12
  4. Step 4: Simplify right side
    9,785.52x = 71,692,404.22
  5. Step 5: Solve for x
    x = 71,692,404.22/9,785.52
  6. Step 6: Final answer
    x = 7,326.38

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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.