Home / 15,979.11-22,047.46-9,603.55

Finding the Fourth Proportional to 15,979.11, 22,047.46 and 9,603.55

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Solution

The fourth proportional to 15,979.11, 22,047.46 and 9,603.55 is: 13,250.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,979.11 : 22,047.46 = 9,603.55 : x
  2. Step 2: Convert to fraction form
    15,979.11/22,047.46 = 9,603.55/x
  3. Step 3: Cross multiply
    15,979.11x = 22,047.46 × 9,603.55
  4. Step 4: Simplify right side
    15,979.11x = 211,733,884.48
  5. Step 5: Solve for x
    x = 211,733,884.48/15,979.11
  6. Step 6: Final answer
    x = 13,250.67

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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.