Home / 18,955.08-28,436.67-7,271.64

Finding the Fourth Proportional to 18,955.08, 28,436.67 and 7,271.64

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Solution

The fourth proportional to 18,955.08, 28,436.67 and 7,271.64 is: 10,909.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,955.08 : 28,436.67 = 7,271.64 : x
  2. Step 2: Convert to fraction form
    18,955.08/28,436.67 = 7,271.64/x
  3. Step 3: Cross multiply
    18,955.08x = 28,436.67 × 7,271.64
  4. Step 4: Simplify right side
    18,955.08x = 206,781,227.04
  5. Step 5: Solve for x
    x = 206,781,227.04/18,955.08
  6. Step 6: Final answer
    x = 10,909.01

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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.