Home / 9,439.40-13,031.02-5,904.60

Finding the Fourth Proportional to 9,439.40, 13,031.02 and 5,904.60

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Solution

The fourth proportional to 9,439.40, 13,031.02 and 5,904.60 is: 8,151.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,439.40 : 13,031.02 = 5,904.60 : x
  2. Step 2: Convert to fraction form
    9,439.40/13,031.02 = 5,904.60/x
  3. Step 3: Cross multiply
    9,439.40x = 13,031.02 × 5,904.60
  4. Step 4: Simplify right side
    9,439.40x = 76,942,960.69
  5. Step 5: Solve for x
    x = 76,942,960.69/9,439.40
  6. Step 6: Final answer
    x = 8,151.26

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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.