Home / 18,309.49-25,248.92-13,783.01

Finding the Fourth Proportional to 18,309.49, 25,248.92 and 13,783.01

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Solution

The fourth proportional to 18,309.49, 25,248.92 and 13,783.01 is: 19,006.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,309.49 : 25,248.92 = 13,783.01 : x
  2. Step 2: Convert to fraction form
    18,309.49/25,248.92 = 13,783.01/x
  3. Step 3: Cross multiply
    18,309.49x = 25,248.92 × 13,783.01
  4. Step 4: Simplify right side
    18,309.49x = 348,006,063.71
  5. Step 5: Solve for x
    x = 348,006,063.71/18,309.49
  6. Step 6: Final answer
    x = 19,006.86

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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.