Home / 13,322.08-18,373.18-8,015.90

Finding the Fourth Proportional to 13,322.08, 18,373.18 and 8,015.90

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Solution

The fourth proportional to 13,322.08, 18,373.18 and 8,015.90 is: 11,055.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,322.08 : 18,373.18 = 8,015.90 : x
  2. Step 2: Convert to fraction form
    13,322.08/18,373.18 = 8,015.90/x
  3. Step 3: Cross multiply
    13,322.08x = 18,373.18 × 8,015.90
  4. Step 4: Simplify right side
    13,322.08x = 147,277,533.48
  5. Step 5: Solve for x
    x = 147,277,533.48/13,322.08
  6. Step 6: Final answer
    x = 11,055.15

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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.