Home / 9,431.40-14,148.45-3,190.35

Finding the Fourth Proportional to 9,431.40, 14,148.45 and 3,190.35

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Solution

The fourth proportional to 9,431.40, 14,148.45 and 3,190.35 is: 4,785.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,431.40 : 14,148.45 = 3,190.35 : x
  2. Step 2: Convert to fraction form
    9,431.40/14,148.45 = 3,190.35/x
  3. Step 3: Cross multiply
    9,431.40x = 14,148.45 × 3,190.35
  4. Step 4: Simplify right side
    9,431.40x = 45,138,507.46
  5. Step 5: Solve for x
    x = 45,138,507.46/9,431.40
  6. Step 6: Final answer
    x = 4,785.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.