Home / 19,665.28-27,136.06-12,110.40

Finding the Fourth Proportional to 19,665.28, 27,136.06 and 12,110.40

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Solution

The fourth proportional to 19,665.28, 27,136.06 and 12,110.40 is: 16,711.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,665.28 : 27,136.06 = 12,110.40 : x
  2. Step 2: Convert to fraction form
    19,665.28/27,136.06 = 12,110.40/x
  3. Step 3: Cross multiply
    19,665.28x = 27,136.06 × 12,110.40
  4. Step 4: Simplify right side
    19,665.28x = 328,628,541.02
  5. Step 5: Solve for x
    x = 328,628,541.02/19,665.28
  6. Step 6: Final answer
    x = 16,711.10

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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.