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Finding the Fourth Proportional to 9,819.51, 13,551.03 and 5,343.36

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Solution

The fourth proportional to 9,819.51, 13,551.03 and 5,343.36 is: 7,373.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,819.51 : 13,551.03 = 5,343.36 : x
  2. Step 2: Convert to fraction form
    9,819.51/13,551.03 = 5,343.36/x
  3. Step 3: Cross multiply
    9,819.51x = 13,551.03 × 5,343.36
  4. Step 4: Simplify right side
    9,819.51x = 72,408,031.66
  5. Step 5: Solve for x
    x = 72,408,031.66/9,819.51
  6. Step 6: Final answer
    x = 7,373.89

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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.