Home / 19,616.78-27,070.50-10,664.12

Finding the Fourth Proportional to 19,616.78, 27,070.50 and 10,664.12

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Solution

The fourth proportional to 19,616.78, 27,070.50 and 10,664.12 is: 14,716.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,616.78 : 27,070.50 = 10,664.12 : x
  2. Step 2: Convert to fraction form
    19,616.78/27,070.50 = 10,664.12/x
  3. Step 3: Cross multiply
    19,616.78x = 27,070.50 × 10,664.12
  4. Step 4: Simplify right side
    19,616.78x = 288,683,060.46
  5. Step 5: Solve for x
    x = 288,683,060.46/19,616.78
  6. Step 6: Final answer
    x = 14,716.13

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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.