Home / 18,983.64-28,436.58-10,663.32

Finding the Fourth Proportional to 18,983.64, 28,436.58 and 10,663.32

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Solution

The fourth proportional to 18,983.64, 28,436.58 and 10,663.32 is: 15,973.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,983.64 : 28,436.58 = 10,663.32 : x
  2. Step 2: Convert to fraction form
    18,983.64/28,436.58 = 10,663.32/x
  3. Step 3: Cross multiply
    18,983.64x = 28,436.58 × 10,663.32
  4. Step 4: Simplify right side
    18,983.64x = 303,228,352.25
  5. Step 5: Solve for x
    x = 303,228,352.25/18,983.64
  6. Step 6: Final answer
    x = 15,973.14

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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.