Home / 9,785.06-13,503.30-5,308.80

Finding the Fourth Proportional to 9,785.06, 13,503.30 and 5,308.80

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Solution

The fourth proportional to 9,785.06, 13,503.30 and 5,308.80 is: 7,326.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,785.06 : 13,503.30 = 5,308.80 : x
  2. Step 2: Convert to fraction form
    9,785.06/13,503.30 = 5,308.80/x
  3. Step 3: Cross multiply
    9,785.06x = 13,503.30 × 5,308.80
  4. Step 4: Simplify right side
    9,785.06x = 71,686,319.04
  5. Step 5: Solve for x
    x = 71,686,319.04/9,785.06
  6. Step 6: Final answer
    x = 7,326.10

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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.