Home / 18,782.40-28,177.74-7,095.72

Finding the Fourth Proportional to 18,782.40, 28,177.74 and 7,095.72

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Solution

The fourth proportional to 18,782.40, 28,177.74 and 7,095.72 is: 10,645.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,782.40 : 28,177.74 = 7,095.72 : x
  2. Step 2: Convert to fraction form
    18,782.40/28,177.74 = 7,095.72/x
  3. Step 3: Cross multiply
    18,782.40x = 28,177.74 × 7,095.72
  4. Step 4: Simplify right side
    18,782.40x = 199,941,353.27
  5. Step 5: Solve for x
    x = 199,941,353.27/18,782.40
  6. Step 6: Final answer
    x = 10,645.14

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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.