Home / 9,903.90-13,662.46-6,317.94

Finding the Fourth Proportional to 9,903.90, 13,662.46 and 6,317.94

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Solution

The fourth proportional to 9,903.90, 13,662.46 and 6,317.94 is: 8,715.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,903.90 : 13,662.46 = 6,317.94 : x
  2. Step 2: Convert to fraction form
    9,903.90/13,662.46 = 6,317.94/x
  3. Step 3: Cross multiply
    9,903.90x = 13,662.46 × 6,317.94
  4. Step 4: Simplify right side
    9,903.90x = 86,318,602.53
  5. Step 5: Solve for x
    x = 86,318,602.53/9,903.90
  6. Step 6: Final answer
    x = 8,715.62

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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.