Home / 8,952.15-12,355.80-5,174.77

Finding the Fourth Proportional to 8,952.15, 12,355.80 and 5,174.77

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Solution

The fourth proportional to 8,952.15, 12,355.80 and 5,174.77 is: 7,142.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,952.15 : 12,355.80 = 5,174.77 : x
  2. Step 2: Convert to fraction form
    8,952.15/12,355.80 = 5,174.77/x
  3. Step 3: Cross multiply
    8,952.15x = 12,355.80 × 5,174.77
  4. Step 4: Simplify right side
    8,952.15x = 63,938,423.17
  5. Step 5: Solve for x
    x = 63,938,423.17/8,952.15
  6. Step 6: Final answer
    x = 7,142.24

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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.