Home / 18,339.27-25,307.80-9,955.77

Finding the Fourth Proportional to 18,339.27, 25,307.80 and 9,955.77

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Solution

The fourth proportional to 18,339.27, 25,307.80 and 9,955.77 is: 13,738.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,339.27 : 25,307.80 = 9,955.77 : x
  2. Step 2: Convert to fraction form
    18,339.27/25,307.80 = 9,955.77/x
  3. Step 3: Cross multiply
    18,339.27x = 25,307.80 × 9,955.77
  4. Step 4: Simplify right side
    18,339.27x = 251,958,636.01
  5. Step 5: Solve for x
    x = 251,958,636.01/18,339.27
  6. Step 6: Final answer
    x = 13,738.75

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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.