Home / 16,985.18-25,451.80-7,119.08

Finding the Fourth Proportional to 16,985.18, 25,451.80 and 7,119.08

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Solution

The fourth proportional to 16,985.18, 25,451.80 and 7,119.08 is: 10,667.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,985.18 : 25,451.80 = 7,119.08 : x
  2. Step 2: Convert to fraction form
    16,985.18/25,451.80 = 7,119.08/x
  3. Step 3: Cross multiply
    16,985.18x = 25,451.80 × 7,119.08
  4. Step 4: Simplify right side
    16,985.18x = 181,193,446.18
  5. Step 5: Solve for x
    x = 181,193,446.18/16,985.18
  6. Step 6: Final answer
    x = 10,667.74

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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.