Home / 12,931.78-17,844.74-7,266.08

Finding the Fourth Proportional to 12,931.78, 17,844.74 and 7,266.08

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Solution

The fourth proportional to 12,931.78, 17,844.74 and 7,266.08 is: 10,026.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,931.78 : 17,844.74 = 7,266.08 : x
  2. Step 2: Convert to fraction form
    12,931.78/17,844.74 = 7,266.08/x
  3. Step 3: Cross multiply
    12,931.78x = 17,844.74 × 7,266.08
  4. Step 4: Simplify right side
    12,931.78x = 129,661,219.20
  5. Step 5: Solve for x
    x = 129,661,219.20/12,931.78
  6. Step 6: Final answer
    x = 10,026.56

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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.