Home / 7,780.06-11,654.54-5,308.76

Finding the Fourth Proportional to 7,780.06, 11,654.54 and 5,308.76

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Solution

The fourth proportional to 7,780.06, 11,654.54 and 5,308.76 is: 7,952.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,780.06 : 11,654.54 = 5,308.76 : x
  2. Step 2: Convert to fraction form
    7,780.06/11,654.54 = 5,308.76/x
  3. Step 3: Cross multiply
    7,780.06x = 11,654.54 × 5,308.76
  4. Step 4: Simplify right side
    7,780.06x = 61,871,155.77
  5. Step 5: Solve for x
    x = 61,871,155.77/7,780.06
  6. Step 6: Final answer
    x = 7,952.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.