Home / 14,720.99-20,312.21-8,754.12

Finding the Fourth Proportional to 14,720.99, 20,312.21 and 8,754.12

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Solution

The fourth proportional to 14,720.99, 20,312.21 and 8,754.12 is: 12,079.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,720.99 : 20,312.21 = 8,754.12 : x
  2. Step 2: Convert to fraction form
    14,720.99/20,312.21 = 8,754.12/x
  3. Step 3: Cross multiply
    14,720.99x = 20,312.21 × 8,754.12
  4. Step 4: Simplify right side
    14,720.99x = 177,815,523.81
  5. Step 5: Solve for x
    x = 177,815,523.81/14,720.99
  6. Step 6: Final answer
    x = 12,079.05

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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.