Home / 9,317.81-12,877.02-7,636.56

Finding the Fourth Proportional to 9,317.81, 12,877.02 and 7,636.56

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Solution

The fourth proportional to 9,317.81, 12,877.02 and 7,636.56 is: 10,553.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,317.81 : 12,877.02 = 7,636.56 : x
  2. Step 2: Convert to fraction form
    9,317.81/12,877.02 = 7,636.56/x
  3. Step 3: Cross multiply
    9,317.81x = 12,877.02 × 7,636.56
  4. Step 4: Simplify right side
    9,317.81x = 98,336,135.85
  5. Step 5: Solve for x
    x = 98,336,135.85/9,317.81
  6. Step 6: Final answer
    x = 10,553.57

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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.