Home / 15,349.75-21,182.66-8,725.75

Finding the Fourth Proportional to 15,349.75, 21,182.66 and 8,725.75

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Solution

The fourth proportional to 15,349.75, 21,182.66 and 8,725.75 is: 12,041.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,349.75 : 21,182.66 = 8,725.75 : x
  2. Step 2: Convert to fraction form
    15,349.75/21,182.66 = 8,725.75/x
  3. Step 3: Cross multiply
    15,349.75x = 21,182.66 × 8,725.75
  4. Step 4: Simplify right side
    15,349.75x = 184,834,595.50
  5. Step 5: Solve for x
    x = 184,834,595.50/15,349.75
  6. Step 6: Final answer
    x = 12,041.54

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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.