Home / 19,867.16-27,408.91-11,364.74

Finding the Fourth Proportional to 19,867.16, 27,408.91 and 11,364.74

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Solution

The fourth proportional to 19,867.16, 27,408.91 and 11,364.74 is: 15,678.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,867.16 : 27,408.91 = 11,364.74 : x
  2. Step 2: Convert to fraction form
    19,867.16/27,408.91 = 11,364.74/x
  3. Step 3: Cross multiply
    19,867.16x = 27,408.91 × 11,364.74
  4. Step 4: Simplify right side
    19,867.16x = 311,495,135.83
  5. Step 5: Solve for x
    x = 311,495,135.83/19,867.16
  6. Step 6: Final answer
    x = 15,678.90

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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.