Home / 9,780.08-13,496.44-5,303.96

Finding the Fourth Proportional to 9,780.08, 13,496.44 and 5,303.96

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Solution

The fourth proportional to 9,780.08, 13,496.44 and 5,303.96 is: 7,319.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,780.08 : 13,496.44 = 5,303.96 : x
  2. Step 2: Convert to fraction form
    9,780.08/13,496.44 = 5,303.96/x
  3. Step 3: Cross multiply
    9,780.08x = 13,496.44 × 5,303.96
  4. Step 4: Simplify right side
    9,780.08x = 71,584,577.90
  5. Step 5: Solve for x
    x = 71,584,577.90/9,780.08
  6. Step 6: Final answer
    x = 7,319.43

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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.