Home / 8,977.01-12,386.39-5,199.95

Finding the Fourth Proportional to 8,977.01, 12,386.39 and 5,199.95

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Solution

The fourth proportional to 8,977.01, 12,386.39 and 5,199.95 is: 7,174.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,977.01 : 12,386.39 = 5,199.95 : x
  2. Step 2: Convert to fraction form
    8,977.01/12,386.39 = 5,199.95/x
  3. Step 3: Cross multiply
    8,977.01x = 12,386.39 × 5,199.95
  4. Step 4: Simplify right side
    8,977.01x = 64,408,559.75
  5. Step 5: Solve for x
    x = 64,408,559.75/8,977.01
  6. Step 6: Final answer
    x = 7,174.84

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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.