Home / 9,854.34-13,598.78-5,378.07

Finding the Fourth Proportional to 9,854.34, 13,598.78 and 5,378.07

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Solution

The fourth proportional to 9,854.34, 13,598.78 and 5,378.07 is: 7,421.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,854.34 : 13,598.78 = 5,378.07 : x
  2. Step 2: Convert to fraction form
    9,854.34/13,598.78 = 5,378.07/x
  3. Step 3: Cross multiply
    9,854.34x = 13,598.78 × 5,378.07
  4. Step 4: Simplify right side
    9,854.34x = 73,135,190.75
  5. Step 5: Solve for x
    x = 73,135,190.75/9,854.34
  6. Step 6: Final answer
    x = 7,421.62

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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.