Home / 18,681.96-28,028.32-5,534.58

Finding the Fourth Proportional to 18,681.96, 28,028.32 and 5,534.58

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Solution

The fourth proportional to 18,681.96, 28,028.32 and 5,534.58 is: 8,303.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,681.96 : 28,028.32 = 5,534.58 : x
  2. Step 2: Convert to fraction form
    18,681.96/28,028.32 = 5,534.58/x
  3. Step 3: Cross multiply
    18,681.96x = 28,028.32 × 5,534.58
  4. Step 4: Simplify right side
    18,681.96x = 155,124,979.31
  5. Step 5: Solve for x
    x = 155,124,979.31/18,681.96
  6. Step 6: Final answer
    x = 8,303.46

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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.