Home / 12,899.18-19,330.51-5,496.18

Finding the Fourth Proportional to 12,899.18, 19,330.51 and 5,496.18

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Solution

The fourth proportional to 12,899.18, 19,330.51 and 5,496.18 is: 8,236.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,899.18 : 19,330.51 = 5,496.18 : x
  2. Step 2: Convert to fraction form
    12,899.18/19,330.51 = 5,496.18/x
  3. Step 3: Cross multiply
    12,899.18x = 19,330.51 × 5,496.18
  4. Step 4: Simplify right side
    12,899.18x = 106,243,962.45
  5. Step 5: Solve for x
    x = 106,243,962.45/12,899.18
  6. Step 6: Final answer
    x = 8,236.49

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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.