Home / 18,337.79-27,520.54-12,712.30

Finding the Fourth Proportional to 18,337.79, 27,520.54 and 12,712.30

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Solution

The fourth proportional to 18,337.79, 27,520.54 and 12,712.30 is: 19,078.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,337.79 : 27,520.54 = 12,712.30 : x
  2. Step 2: Convert to fraction form
    18,337.79/27,520.54 = 12,712.30/x
  3. Step 3: Cross multiply
    18,337.79x = 27,520.54 × 12,712.30
  4. Step 4: Simplify right side
    18,337.79x = 349,849,260.06
  5. Step 5: Solve for x
    x = 349,849,260.06/18,337.79
  6. Step 6: Final answer
    x = 19,078.05

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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.