Home / 18,219.08-27,323.76-7,125.32

Finding the Fourth Proportional to 18,219.08, 27,323.76 and 7,125.32

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Solution

The fourth proportional to 18,219.08, 27,323.76 and 7,125.32 is: 10,686.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,219.08 : 27,323.76 = 7,125.32 : x
  2. Step 2: Convert to fraction form
    18,219.08/27,323.76 = 7,125.32/x
  3. Step 3: Cross multiply
    18,219.08x = 27,323.76 × 7,125.32
  4. Step 4: Simplify right side
    18,219.08x = 194,690,533.60
  5. Step 5: Solve for x
    x = 194,690,533.60/18,219.08
  6. Step 6: Final answer
    x = 10,686.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.