Home / 18,901.16-28,369.26-9,547.75

Finding the Fourth Proportional to 18,901.16, 28,369.26 and 9,547.75

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Solution

The fourth proportional to 18,901.16, 28,369.26 and 9,547.75 is: 14,330.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,901.16 : 28,369.26 = 9,547.75 : x
  2. Step 2: Convert to fraction form
    18,901.16/28,369.26 = 9,547.75/x
  3. Step 3: Cross multiply
    18,901.16x = 28,369.26 × 9,547.75
  4. Step 4: Simplify right side
    18,901.16x = 270,862,629.57
  5. Step 5: Solve for x
    x = 270,862,629.57/18,901.16
  6. Step 6: Final answer
    x = 14,330.48

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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.