Home / 18,488.12-25,515.06-10,530.68

Finding the Fourth Proportional to 18,488.12, 25,515.06 and 10,530.68

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Solution

The fourth proportional to 18,488.12, 25,515.06 and 10,530.68 is: 14,533.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,488.12 : 25,515.06 = 10,530.68 : x
  2. Step 2: Convert to fraction form
    18,488.12/25,515.06 = 10,530.68/x
  3. Step 3: Cross multiply
    18,488.12x = 25,515.06 × 10,530.68
  4. Step 4: Simplify right side
    18,488.12x = 268,690,932.04
  5. Step 5: Solve for x
    x = 268,690,932.04/18,488.12
  6. Step 6: Final answer
    x = 14,533.17

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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.