Home / 19,665.36-27,138.02-10,712.84

Finding the Fourth Proportional to 19,665.36, 27,138.02 and 10,712.84

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Solution

The fourth proportional to 19,665.36, 27,138.02 and 10,712.84 is: 14,783.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,665.36 : 27,138.02 = 10,712.84 : x
  2. Step 2: Convert to fraction form
    19,665.36/27,138.02 = 10,712.84/x
  3. Step 3: Cross multiply
    19,665.36x = 27,138.02 × 10,712.84
  4. Step 4: Simplify right side
    19,665.36x = 290,725,266.18
  5. Step 5: Solve for x
    x = 290,725,266.18/19,665.36
  6. Step 6: Final answer
    x = 14,783.62

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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.