Home / 12,781.10-19,173.54-6,544.64

Finding the Fourth Proportional to 12,781.10, 19,173.54 and 6,544.64

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Solution

The fourth proportional to 12,781.10, 19,173.54 and 6,544.64 is: 9,817.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,781.10 : 19,173.54 = 6,544.64 : x
  2. Step 2: Convert to fraction form
    12,781.10/19,173.54 = 6,544.64/x
  3. Step 3: Cross multiply
    12,781.10x = 19,173.54 × 6,544.64
  4. Step 4: Simplify right side
    12,781.10x = 125,483,916.83
  5. Step 5: Solve for x
    x = 125,483,916.83/12,781.10
  6. Step 6: Final answer
    x = 9,817.93

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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.