Home / 18,637.66-27,969.45-12,047.50

Finding the Fourth Proportional to 18,637.66, 27,969.45 and 12,047.50

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Solution

The fourth proportional to 18,637.66, 27,969.45 and 12,047.50 is: 18,079.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,637.66 : 27,969.45 = 12,047.50 : x
  2. Step 2: Convert to fraction form
    18,637.66/27,969.45 = 12,047.50/x
  3. Step 3: Cross multiply
    18,637.66x = 27,969.45 × 12,047.50
  4. Step 4: Simplify right side
    18,637.66x = 336,961,948.88
  5. Step 5: Solve for x
    x = 336,961,948.88/18,637.66
  6. Step 6: Final answer
    x = 18,079.63

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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.