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Finding the Fourth Proportional to 6,686.70, 10,030.05 and 4,208.10

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Solution

The fourth proportional to 6,686.70, 10,030.05 and 4,208.10 is: 6,312.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,686.70 : 10,030.05 = 4,208.10 : x
  2. Step 2: Convert to fraction form
    6,686.70/10,030.05 = 4,208.10/x
  3. Step 3: Cross multiply
    6,686.70x = 10,030.05 × 4,208.10
  4. Step 4: Simplify right side
    6,686.70x = 42,207,453.41
  5. Step 5: Solve for x
    x = 42,207,453.41/6,686.70
  6. Step 6: Final answer
    x = 6,312.15

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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.