Home / 9,938.37-13,713.49-5,688.75

Finding the Fourth Proportional to 9,938.37, 13,713.49 and 5,688.75

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Solution

The fourth proportional to 9,938.37, 13,713.49 and 5,688.75 is: 7,849.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,938.37 : 13,713.49 = 5,688.75 : x
  2. Step 2: Convert to fraction form
    9,938.37/13,713.49 = 5,688.75/x
  3. Step 3: Cross multiply
    9,938.37x = 13,713.49 × 5,688.75
  4. Step 4: Simplify right side
    9,938.37x = 78,012,616.24
  5. Step 5: Solve for x
    x = 78,012,616.24/9,938.37
  6. Step 6: Final answer
    x = 7,849.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.