Home / 7,021.69-9,687.20-4,368.13

Finding the Fourth Proportional to 7,021.69, 9,687.20 and 4,368.13

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Solution

The fourth proportional to 7,021.69, 9,687.20 and 4,368.13 is: 6,026.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,021.69 : 9,687.20 = 4,368.13 : x
  2. Step 2: Convert to fraction form
    7,021.69/9,687.20 = 4,368.13/x
  3. Step 3: Cross multiply
    7,021.69x = 9,687.20 × 4,368.13
  4. Step 4: Simplify right side
    7,021.69x = 42,314,902.88
  5. Step 5: Solve for x
    x = 42,314,902.88/7,021.69
  6. Step 6: Final answer
    x = 6,026.32

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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.