Home / 6,666.21-9,199.51-4,013.06

Finding the Fourth Proportional to 6,666.21, 9,199.51 and 4,013.06

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Solution

The fourth proportional to 6,666.21, 9,199.51 and 4,013.06 is: 5,538.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,666.21 : 9,199.51 = 4,013.06 : x
  2. Step 2: Convert to fraction form
    6,666.21/9,199.51 = 4,013.06/x
  3. Step 3: Cross multiply
    6,666.21x = 9,199.51 × 4,013.06
  4. Step 4: Simplify right side
    6,666.21x = 36,918,129.57
  5. Step 5: Solve for x
    x = 36,918,129.57/6,666.21
  6. Step 6: Final answer
    x = 5,538.10

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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.