Home / 18,320.13-25,281.72-9,936.63

Finding the Fourth Proportional to 18,320.13, 25,281.72 and 9,936.63

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Solution

The fourth proportional to 18,320.13, 25,281.72 and 9,936.63 is: 13,712.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,320.13 : 25,281.72 = 9,936.63 : x
  2. Step 2: Convert to fraction form
    18,320.13/25,281.72 = 9,936.63/x
  3. Step 3: Cross multiply
    18,320.13x = 25,281.72 × 9,936.63
  4. Step 4: Simplify right side
    18,320.13x = 251,215,097.40
  5. Step 5: Solve for x
    x = 251,215,097.40/18,320.13
  6. Step 6: Final answer
    x = 13,712.52

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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.