Home / 19,581.21-27,026.19-12,506.40

Finding the Fourth Proportional to 19,581.21, 27,026.19 and 12,506.40

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Solution

The fourth proportional to 19,581.21, 27,026.19 and 12,506.40 is: 17,261.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,581.21 : 27,026.19 = 12,506.40 : x
  2. Step 2: Convert to fraction form
    19,581.21/27,026.19 = 12,506.40/x
  3. Step 3: Cross multiply
    19,581.21x = 27,026.19 × 12,506.40
  4. Step 4: Simplify right side
    19,581.21x = 338,000,342.62
  5. Step 5: Solve for x
    x = 338,000,342.62/19,581.21
  6. Step 6: Final answer
    x = 17,261.46

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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.