Home / 10,353.43-14,289.05-7,708.37

Finding the Fourth Proportional to 10,353.43, 14,289.05 and 7,708.37

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Solution

The fourth proportional to 10,353.43, 14,289.05 and 7,708.37 is: 10,638.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,353.43 : 14,289.05 = 7,708.37 : x
  2. Step 2: Convert to fraction form
    10,353.43/14,289.05 = 7,708.37/x
  3. Step 3: Cross multiply
    10,353.43x = 14,289.05 × 7,708.37
  4. Step 4: Simplify right side
    10,353.43x = 110,145,245.81
  5. Step 5: Solve for x
    x = 110,145,245.81/10,353.43
  6. Step 6: Final answer
    x = 10,638.53

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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.