Home / 15,775.36-21,783.10-14,093.80

Finding the Fourth Proportional to 15,775.36, 21,783.10 and 14,093.80

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Solution

The fourth proportional to 15,775.36, 21,783.10 and 14,093.80 is: 19,461.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,775.36 : 21,783.10 = 14,093.80 : x
  2. Step 2: Convert to fraction form
    15,775.36/21,783.10 = 14,093.80/x
  3. Step 3: Cross multiply
    15,775.36x = 21,783.10 × 14,093.80
  4. Step 4: Simplify right side
    15,775.36x = 307,006,654.78
  5. Step 5: Solve for x
    x = 307,006,654.78/15,775.36
  6. Step 6: Final answer
    x = 19,461.15

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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.