Home / 12,248.32-18,359.64-5,136.64

Finding the Fourth Proportional to 12,248.32, 18,359.64 and 5,136.64

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Solution

The fourth proportional to 12,248.32, 18,359.64 and 5,136.64 is: 7,699.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,248.32 : 18,359.64 = 5,136.64 : x
  2. Step 2: Convert to fraction form
    12,248.32/18,359.64 = 5,136.64/x
  3. Step 3: Cross multiply
    12,248.32x = 18,359.64 × 5,136.64
  4. Step 4: Simplify right side
    12,248.32x = 94,306,861.21
  5. Step 5: Solve for x
    x = 94,306,861.21/12,248.32
  6. Step 6: Final answer
    x = 7,699.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.