Home / 8,465.47-11,681.82-4,688.57

Finding the Fourth Proportional to 8,465.47, 11,681.82 and 4,688.57

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Solution

The fourth proportional to 8,465.47, 11,681.82 and 4,688.57 is: 6,469.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,465.47 : 11,681.82 = 4,688.57 : x
  2. Step 2: Convert to fraction form
    8,465.47/11,681.82 = 4,688.57/x
  3. Step 3: Cross multiply
    8,465.47x = 11,681.82 × 4,688.57
  4. Step 4: Simplify right side
    8,465.47x = 54,771,060.00
  5. Step 5: Solve for x
    x = 54,771,060.00/8,465.47
  6. Step 6: Final answer
    x = 6,469.94

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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.