Home / 14,889.20-20,547.10-8,174.99

Finding the Fourth Proportional to 14,889.20, 20,547.10 and 8,174.99

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Solution

The fourth proportional to 14,889.20, 20,547.10 and 8,174.99 is: 11,281.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,889.20 : 20,547.10 = 8,174.99 : x
  2. Step 2: Convert to fraction form
    14,889.20/20,547.10 = 8,174.99/x
  3. Step 3: Cross multiply
    14,889.20x = 20,547.10 × 8,174.99
  4. Step 4: Simplify right side
    14,889.20x = 167,972,398.62
  5. Step 5: Solve for x
    x = 167,972,398.62/14,889.20
  6. Step 6: Final answer
    x = 11,281.50

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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.