Home / 13,595.28-18,760.28-9,118.22

Finding the Fourth Proportional to 13,595.28, 18,760.28 and 9,118.22

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Solution

The fourth proportional to 13,595.28, 18,760.28 and 9,118.22 is: 12,582.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,595.28 : 18,760.28 = 9,118.22 : x
  2. Step 2: Convert to fraction form
    13,595.28/18,760.28 = 9,118.22/x
  3. Step 3: Cross multiply
    13,595.28x = 18,760.28 × 9,118.22
  4. Step 4: Simplify right side
    13,595.28x = 171,060,360.30
  5. Step 5: Solve for x
    x = 171,060,360.30/13,595.28
  6. Step 6: Final answer
    x = 12,582.33

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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.