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Finding the Fourth Proportional to 9,903.04, 13,655.82 and 6,917.68

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Solution

The fourth proportional to 9,903.04, 13,655.82 and 6,917.68 is: 9,539.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,903.04 : 13,655.82 = 6,917.68 : x
  2. Step 2: Convert to fraction form
    9,903.04/13,655.82 = 6,917.68/x
  3. Step 3: Cross multiply
    9,903.04x = 13,655.82 × 6,917.68
  4. Step 4: Simplify right side
    9,903.04x = 94,466,592.90
  5. Step 5: Solve for x
    x = 94,466,592.90/9,903.04
  6. Step 6: Final answer
    x = 9,539.15

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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.