Home / 8,720.06-12,012.32-6,322.99

Finding the Fourth Proportional to 8,720.06, 12,012.32 and 6,322.99

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Solution

The fourth proportional to 8,720.06, 12,012.32 and 6,322.99 is: 8,710.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,720.06 : 12,012.32 = 6,322.99 : x
  2. Step 2: Convert to fraction form
    8,720.06/12,012.32 = 6,322.99/x
  3. Step 3: Cross multiply
    8,720.06x = 12,012.32 × 6,322.99
  4. Step 4: Simplify right side
    8,720.06x = 75,953,779.24
  5. Step 5: Solve for x
    x = 75,953,779.24/8,720.06
  6. Step 6: Final answer
    x = 8,710.24

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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.