Home / 12,878.29-19,266.60-9,767.08

Finding the Fourth Proportional to 12,878.29, 19,266.60 and 9,767.08

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Solution

The fourth proportional to 12,878.29, 19,266.60 and 9,767.08 is: 14,612.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,878.29 : 19,266.60 = 9,767.08 : x
  2. Step 2: Convert to fraction form
    12,878.29/19,266.60 = 9,767.08/x
  3. Step 3: Cross multiply
    12,878.29x = 19,266.60 × 9,767.08
  4. Step 4: Simplify right side
    12,878.29x = 188,178,327.20
  5. Step 5: Solve for x
    x = 188,178,327.20/12,878.29
  6. Step 6: Final answer
    x = 14,612.06

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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.