Home / 18,366.76-25,346-9,983.28

Finding the Fourth Proportional to 18,366.76, 25,346 and 9,983.28

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Solution

The fourth proportional to 18,366.76, 25,346 and 9,983.28 is: 13,776.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,366.76 : 25,346 = 9,983.28 : x
  2. Step 2: Convert to fraction form
    18,366.76/25,346 = 9,983.28/x
  3. Step 3: Cross multiply
    18,366.76x = 25,346 × 9,983.28
  4. Step 4: Simplify right side
    18,366.76x = 253,036,214.88
  5. Step 5: Solve for x
    x = 253,036,214.88/18,366.76
  6. Step 6: Final answer
    x = 13,776.86

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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.