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Finding the Fourth Proportional to 8,400.68, 12,602.64 and 4,707.08

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Solution

The fourth proportional to 8,400.68, 12,602.64 and 4,707.08 is: 7,061.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,400.68 : 12,602.64 = 4,707.08 : x
  2. Step 2: Convert to fraction form
    8,400.68/12,602.64 = 4,707.08/x
  3. Step 3: Cross multiply
    8,400.68x = 12,602.64 × 4,707.08
  4. Step 4: Simplify right side
    8,400.68x = 59,321,634.69
  5. Step 5: Solve for x
    x = 59,321,634.69/8,400.68
  6. Step 6: Final answer
    x = 7,061.53

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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.