Home / 7,774.90-11,658.07-5,312.50

Finding the Fourth Proportional to 7,774.90, 11,658.07 and 5,312.50

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Solution

The fourth proportional to 7,774.90, 11,658.07 and 5,312.50 is: 7,965.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,774.90 : 11,658.07 = 5,312.50 : x
  2. Step 2: Convert to fraction form
    7,774.90/11,658.07 = 5,312.50/x
  3. Step 3: Cross multiply
    7,774.90x = 11,658.07 × 5,312.50
  4. Step 4: Simplify right side
    7,774.90x = 61,933,496.88
  5. Step 5: Solve for x
    x = 61,933,496.88/7,774.90
  6. Step 6: Final answer
    x = 7,965.83

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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.