Home / 6,666.48-9,199.79-4,015.65

Finding the Fourth Proportional to 6,666.48, 9,199.79 and 4,015.65

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Solution

The fourth proportional to 6,666.48, 9,199.79 and 4,015.65 is: 5,541.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,666.48 : 9,199.79 = 4,015.65 : x
  2. Step 2: Convert to fraction form
    6,666.48/9,199.79 = 4,015.65/x
  3. Step 3: Cross multiply
    6,666.48x = 9,199.79 × 4,015.65
  4. Step 4: Simplify right side
    6,666.48x = 36,943,136.71
  5. Step 5: Solve for x
    x = 36,943,136.71/6,666.48
  6. Step 6: Final answer
    x = 5,541.63

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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.