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Finding the Fourth Proportional to 9,959.45, 13,748.30 and 7,090.03

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Solution

The fourth proportional to 9,959.45, 13,748.30 and 7,090.03 is: 9,787.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,959.45 : 13,748.30 = 7,090.03 : x
  2. Step 2: Convert to fraction form
    9,959.45/13,748.30 = 7,090.03/x
  3. Step 3: Cross multiply
    9,959.45x = 13,748.30 × 7,090.03
  4. Step 4: Simplify right side
    9,959.45x = 97,475,824.00
  5. Step 5: Solve for x
    x = 97,475,824.00/9,959.45
  6. Step 6: Final answer
    x = 9,787.27

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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.