Home / 15,616.95-21,551.89-8,543.37

Finding the Fourth Proportional to 15,616.95, 21,551.89 and 8,543.37

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Solution

The fourth proportional to 15,616.95, 21,551.89 and 8,543.37 is: 11,790.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,616.95 : 21,551.89 = 8,543.37 : x
  2. Step 2: Convert to fraction form
    15,616.95/21,551.89 = 8,543.37/x
  3. Step 3: Cross multiply
    15,616.95x = 21,551.89 × 8,543.37
  4. Step 4: Simplify right side
    15,616.95x = 184,125,619.99
  5. Step 5: Solve for x
    x = 184,125,619.99/15,616.95
  6. Step 6: Final answer
    x = 11,790.11

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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.