Home / 18,300.81-25,255.40-10,235.34

Finding the Fourth Proportional to 18,300.81, 25,255.40 and 10,235.34

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Solution

The fourth proportional to 18,300.81, 25,255.40 and 10,235.34 is: 14,124.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,300.81 : 25,255.40 = 10,235.34 : x
  2. Step 2: Convert to fraction form
    18,300.81/25,255.40 = 10,235.34/x
  3. Step 3: Cross multiply
    18,300.81x = 25,255.40 × 10,235.34
  4. Step 4: Simplify right side
    18,300.81x = 258,497,554.66
  5. Step 5: Solve for x
    x = 258,497,554.66/18,300.81
  6. Step 6: Final answer
    x = 14,124.92

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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.