Home / 13,262.96-18,296.75-7,948.55

Finding the Fourth Proportional to 13,262.96, 18,296.75 and 7,948.55

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Solution

The fourth proportional to 13,262.96, 18,296.75 and 7,948.55 is: 10,965.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,262.96 : 18,296.75 = 7,948.55 : x
  2. Step 2: Convert to fraction form
    13,262.96/18,296.75 = 7,948.55/x
  3. Step 3: Cross multiply
    13,262.96x = 18,296.75 × 7,948.55
  4. Step 4: Simplify right side
    13,262.96x = 145,432,697.83
  5. Step 5: Solve for x
    x = 145,432,697.83/13,262.96
  6. Step 6: Final answer
    x = 10,965.33

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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.