Home / 15,136.38-20,881.47-8,845.98

Finding the Fourth Proportional to 15,136.38, 20,881.47 and 8,845.98

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Solution

The fourth proportional to 15,136.38, 20,881.47 and 8,845.98 is: 12,203.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,136.38 : 20,881.47 = 8,845.98 : x
  2. Step 2: Convert to fraction form
    15,136.38/20,881.47 = 8,845.98/x
  3. Step 3: Cross multiply
    15,136.38x = 20,881.47 × 8,845.98
  4. Step 4: Simplify right side
    15,136.38x = 184,717,065.99
  5. Step 5: Solve for x
    x = 184,717,065.99/15,136.38
  6. Step 6: Final answer
    x = 12,203.52

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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.