Home / 13,212.60-18,219.78-9,232.26

Finding the Fourth Proportional to 13,212.60, 18,219.78 and 9,232.26

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Solution

The fourth proportional to 13,212.60, 18,219.78 and 9,232.26 is: 12,731.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,212.60 : 18,219.78 = 9,232.26 : x
  2. Step 2: Convert to fraction form
    13,212.60/18,219.78 = 9,232.26/x
  3. Step 3: Cross multiply
    13,212.60x = 18,219.78 × 9,232.26
  4. Step 4: Simplify right side
    13,212.60x = 168,209,746.10
  5. Step 5: Solve for x
    x = 168,209,746.10/13,212.60
  6. Step 6: Final answer
    x = 12,731.01

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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.