Home / 8,515-11,748.91-4,977.52

Finding the Fourth Proportional to 8,515, 11,748.91 and 4,977.52

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Solution

The fourth proportional to 8,515, 11,748.91 and 4,977.52 is: 6,867.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,515 : 11,748.91 = 4,977.52 : x
  2. Step 2: Convert to fraction form
    8,515/11,748.91 = 4,977.52/x
  3. Step 3: Cross multiply
    8,515x = 11,748.91 × 4,977.52
  4. Step 4: Simplify right side
    8,515x = 58,480,434.50
  5. Step 5: Solve for x
    x = 58,480,434.50/8,515
  6. Step 6: Final answer
    x = 6,867.93

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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.