Home / 12,681.21-19,017.09-4,358.87

Finding the Fourth Proportional to 12,681.21, 19,017.09 and 4,358.87

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Solution

The fourth proportional to 12,681.21, 19,017.09 and 4,358.87 is: 6,536.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,681.21 : 19,017.09 = 4,358.87 : x
  2. Step 2: Convert to fraction form
    12,681.21/19,017.09 = 4,358.87/x
  3. Step 3: Cross multiply
    12,681.21x = 19,017.09 × 4,358.87
  4. Step 4: Simplify right side
    12,681.21x = 82,893,023.09
  5. Step 5: Solve for x
    x = 82,893,023.09/12,681.21
  6. Step 6: Final answer
    x = 6,536.68

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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.