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Finding the Fourth Proportional to 6,681.40, 10,030.20 and 6,632.80

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Solution

The fourth proportional to 6,681.40, 10,030.20 and 6,632.80 is: 9,957.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,681.40 : 10,030.20 = 6,632.80 : x
  2. Step 2: Convert to fraction form
    6,681.40/10,030.20 = 6,632.80/x
  3. Step 3: Cross multiply
    6,681.40x = 10,030.20 × 6,632.80
  4. Step 4: Simplify right side
    6,681.40x = 66,528,310.56
  5. Step 5: Solve for x
    x = 66,528,310.56/6,681.40
  6. Step 6: Final answer
    x = 9,957.24

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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.