Home / 10,390.36-15,585.56-6,902.68

Finding the Fourth Proportional to 10,390.36, 15,585.56 and 6,902.68

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Solution

The fourth proportional to 10,390.36, 15,585.56 and 6,902.68 is: 10,354.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,390.36 : 15,585.56 = 6,902.68 : x
  2. Step 2: Convert to fraction form
    10,390.36/15,585.56 = 6,902.68/x
  3. Step 3: Cross multiply
    10,390.36x = 15,585.56 × 6,902.68
  4. Step 4: Simplify right side
    10,390.36x = 107,582,133.30
  5. Step 5: Solve for x
    x = 107,582,133.30/10,390.36
  6. Step 6: Final answer
    x = 10,354.03

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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.