Home / 9,788.55-13,508.70-5,539.83

Finding the Fourth Proportional to 9,788.55, 13,508.70 and 5,539.83

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Solution

The fourth proportional to 9,788.55, 13,508.70 and 5,539.83 is: 7,645.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,788.55 : 13,508.70 = 5,539.83 : x
  2. Step 2: Convert to fraction form
    9,788.55/13,508.70 = 5,539.83/x
  3. Step 3: Cross multiply
    9,788.55x = 13,508.70 × 5,539.83
  4. Step 4: Simplify right side
    9,788.55x = 74,835,901.52
  5. Step 5: Solve for x
    x = 74,835,901.52/9,788.55
  6. Step 6: Final answer
    x = 7,645.25

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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.