Home / 18,750.08-28,101.36-9,393.76

Finding the Fourth Proportional to 18,750.08, 28,101.36 and 9,393.76

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Solution

The fourth proportional to 18,750.08, 28,101.36 and 9,393.76 is: 14,078.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,750.08 : 28,101.36 = 9,393.76 : x
  2. Step 2: Convert to fraction form
    18,750.08/28,101.36 = 9,393.76/x
  3. Step 3: Cross multiply
    18,750.08x = 28,101.36 × 9,393.76
  4. Step 4: Simplify right side
    18,750.08x = 263,977,431.51
  5. Step 5: Solve for x
    x = 263,977,431.51/18,750.08
  6. Step 6: Final answer
    x = 14,078.74

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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.