Home / 12,987.66-19,464.92-6,325.76

Finding the Fourth Proportional to 12,987.66, 19,464.92 and 6,325.76

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Solution

The fourth proportional to 12,987.66, 19,464.92 and 6,325.76 is: 9,480.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,987.66 : 19,464.92 = 6,325.76 : x
  2. Step 2: Convert to fraction form
    12,987.66/19,464.92 = 6,325.76/x
  3. Step 3: Cross multiply
    12,987.66x = 19,464.92 × 6,325.76
  4. Step 4: Simplify right side
    12,987.66x = 123,130,412.34
  5. Step 5: Solve for x
    x = 123,130,412.34/12,987.66
  6. Step 6: Final answer
    x = 9,480.57

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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.