Home / 13,591.10-18,749.31-9,614.40

Finding the Fourth Proportional to 13,591.10, 18,749.31 and 9,614.40

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Solution

The fourth proportional to 13,591.10, 18,749.31 and 9,614.40 is: 13,263.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,591.10 : 18,749.31 = 9,614.40 : x
  2. Step 2: Convert to fraction form
    13,591.10/18,749.31 = 9,614.40/x
  3. Step 3: Cross multiply
    13,591.10x = 18,749.31 × 9,614.40
  4. Step 4: Simplify right side
    13,591.10x = 180,263,366.06
  5. Step 5: Solve for x
    x = 180,263,366.06/13,591.10
  6. Step 6: Final answer
    x = 13,263.34

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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.