Home / 18,133.30-27,210.84-6,445.63

Finding the Fourth Proportional to 18,133.30, 27,210.84 and 6,445.63

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Solution

The fourth proportional to 18,133.30, 27,210.84 and 6,445.63 is: 9,672.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,133.30 : 27,210.84 = 6,445.63 : x
  2. Step 2: Convert to fraction form
    18,133.30/27,210.84 = 6,445.63/x
  3. Step 3: Cross multiply
    18,133.30x = 27,210.84 × 6,445.63
  4. Step 4: Simplify right side
    18,133.30x = 175,391,006.63
  5. Step 5: Solve for x
    x = 175,391,006.63/18,133.30
  6. Step 6: Final answer
    x = 9,672.32

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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.