Home / 18,734.66-28,114.74-9,975.72

Finding the Fourth Proportional to 18,734.66, 28,114.74 and 9,975.72

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Solution

The fourth proportional to 18,734.66, 28,114.74 and 9,975.72 is: 14,970.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,734.66 : 28,114.74 = 9,975.72 : x
  2. Step 2: Convert to fraction form
    18,734.66/28,114.74 = 9,975.72/x
  3. Step 3: Cross multiply
    18,734.66x = 28,114.74 × 9,975.72
  4. Step 4: Simplify right side
    18,734.66x = 280,464,774.11
  5. Step 5: Solve for x
    x = 280,464,774.11/18,734.66
  6. Step 6: Final answer
    x = 14,970.37

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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.