Home / 14,720.87-20,315.03-8,006.49

Finding the Fourth Proportional to 14,720.87, 20,315.03 and 8,006.49

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Solution

The fourth proportional to 14,720.87, 20,315.03 and 8,006.49 is: 11,049.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,720.87 : 20,315.03 = 8,006.49 : x
  2. Step 2: Convert to fraction form
    14,720.87/20,315.03 = 8,006.49/x
  3. Step 3: Cross multiply
    14,720.87x = 20,315.03 × 8,006.49
  4. Step 4: Simplify right side
    14,720.87x = 162,652,044.51
  5. Step 5: Solve for x
    x = 162,652,044.51/14,720.87
  6. Step 6: Final answer
    x = 11,049.08

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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.