Home / 13,149.34-18,145.99-7,181.01

Finding the Fourth Proportional to 13,149.34, 18,145.99 and 7,181.01

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Solution

The fourth proportional to 13,149.34, 18,145.99 and 7,181.01 is: 9,909.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,149.34 : 18,145.99 = 7,181.01 : x
  2. Step 2: Convert to fraction form
    13,149.34/18,145.99 = 7,181.01/x
  3. Step 3: Cross multiply
    13,149.34x = 18,145.99 × 7,181.01
  4. Step 4: Simplify right side
    13,149.34x = 130,306,444.92
  5. Step 5: Solve for x
    x = 130,306,444.92/13,149.34
  6. Step 6: Final answer
    x = 9,909.74

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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.