Home / 18,488.12-25,513.58-10,530.34

Finding the Fourth Proportional to 18,488.12, 25,513.58 and 10,530.34

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Solution

The fourth proportional to 18,488.12, 25,513.58 and 10,530.34 is: 14,531.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,488.12 : 25,513.58 = 10,530.34 : x
  2. Step 2: Convert to fraction form
    18,488.12/25,513.58 = 10,530.34/x
  3. Step 3: Cross multiply
    18,488.12x = 25,513.58 × 10,530.34
  4. Step 4: Simplify right side
    18,488.12x = 268,666,634.56
  5. Step 5: Solve for x
    x = 268,666,634.56/18,488.12
  6. Step 6: Final answer
    x = 14,531.86

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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.