Home / 18,488.07-25,513.53-10,530.30

Finding the Fourth Proportional to 18,488.07, 25,513.53 and 10,530.30

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Solution

The fourth proportional to 18,488.07, 25,513.53 and 10,530.30 is: 14,531.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,488.07 : 25,513.53 = 10,530.30 : x
  2. Step 2: Convert to fraction form
    18,488.07/25,513.53 = 10,530.30/x
  3. Step 3: Cross multiply
    18,488.07x = 25,513.53 × 10,530.30
  4. Step 4: Simplify right side
    18,488.07x = 268,665,124.96
  5. Step 5: Solve for x
    x = 268,665,124.96/18,488.07
  6. Step 6: Final answer
    x = 14,531.81

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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.