Home / 18,866.12-28,286.75-10,547.01

Finding the Fourth Proportional to 18,866.12, 28,286.75 and 10,547.01

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Solution

The fourth proportional to 18,866.12, 28,286.75 and 10,547.01 is: 15,813.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,866.12 : 28,286.75 = 10,547.01 : x
  2. Step 2: Convert to fraction form
    18,866.12/28,286.75 = 10,547.01/x
  3. Step 3: Cross multiply
    18,866.12x = 28,286.75 × 10,547.01
  4. Step 4: Simplify right side
    18,866.12x = 298,340,661.49
  5. Step 5: Solve for x
    x = 298,340,661.49/18,866.12
  6. Step 6: Final answer
    x = 15,813.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.