Home / 9,983.70-14,975.55-4,138.74

Finding the Fourth Proportional to 9,983.70, 14,975.55 and 4,138.74

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Solution

The fourth proportional to 9,983.70, 14,975.55 and 4,138.74 is: 6,208.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,983.70 : 14,975.55 = 4,138.74 : x
  2. Step 2: Convert to fraction form
    9,983.70/14,975.55 = 4,138.74/x
  3. Step 3: Cross multiply
    9,983.70x = 14,975.55 × 4,138.74
  4. Step 4: Simplify right side
    9,983.70x = 61,979,907.81
  5. Step 5: Solve for x
    x = 61,979,907.81/9,983.70
  6. Step 6: Final answer
    x = 6,208.11

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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.