Home / 8,005.42-11,999.62-4,720.06

Finding the Fourth Proportional to 8,005.42, 11,999.62 and 4,720.06

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Solution

The fourth proportional to 8,005.42, 11,999.62 and 4,720.06 is: 7,075.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,005.42 : 11,999.62 = 4,720.06 : x
  2. Step 2: Convert to fraction form
    8,005.42/11,999.62 = 4,720.06/x
  3. Step 3: Cross multiply
    8,005.42x = 11,999.62 × 4,720.06
  4. Step 4: Simplify right side
    8,005.42x = 56,638,926.38
  5. Step 5: Solve for x
    x = 56,638,926.38/8,005.42
  6. Step 6: Final answer
    x = 7,075.07

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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.