Home / 15,185.61-20,952.75-8,813.27

Finding the Fourth Proportional to 15,185.61, 20,952.75 and 8,813.27

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Solution

The fourth proportional to 15,185.61, 20,952.75 and 8,813.27 is: 12,160.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,185.61 : 20,952.75 = 8,813.27 : x
  2. Step 2: Convert to fraction form
    15,185.61/20,952.75 = 8,813.27/x
  3. Step 3: Cross multiply
    15,185.61x = 20,952.75 × 8,813.27
  4. Step 4: Simplify right side
    15,185.61x = 184,662,242.99
  5. Step 5: Solve for x
    x = 184,662,242.99/15,185.61
  6. Step 6: Final answer
    x = 12,160.34

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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.