Home / 9,289.28-12,819.30-5,040.34

Finding the Fourth Proportional to 9,289.28, 12,819.30 and 5,040.34

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Solution

The fourth proportional to 9,289.28, 12,819.30 and 5,040.34 is: 6,955.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,289.28 : 12,819.30 = 5,040.34 : x
  2. Step 2: Convert to fraction form
    9,289.28/12,819.30 = 5,040.34/x
  3. Step 3: Cross multiply
    9,289.28x = 12,819.30 × 5,040.34
  4. Step 4: Simplify right side
    9,289.28x = 64,613,598.51
  5. Step 5: Solve for x
    x = 64,613,598.51/9,289.28
  6. Step 6: Final answer
    x = 6,955.71

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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.