Home / 18,283.08-25,230.66-9,899.58

Finding the Fourth Proportional to 18,283.08, 25,230.66 and 9,899.58

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Solution

The fourth proportional to 18,283.08, 25,230.66 and 9,899.58 is: 13,661.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,283.08 : 25,230.66 = 9,899.58 : x
  2. Step 2: Convert to fraction form
    18,283.08/25,230.66 = 9,899.58/x
  3. Step 3: Cross multiply
    18,283.08x = 25,230.66 × 9,899.58
  4. Step 4: Simplify right side
    18,283.08x = 249,772,937.12
  5. Step 5: Solve for x
    x = 249,772,937.12/18,283.08
  6. Step 6: Final answer
    x = 13,661.43

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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.