Home / 10,556.78-15,833.34-6,423.35

Finding the Fourth Proportional to 10,556.78, 15,833.34 and 6,423.35

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Solution

The fourth proportional to 10,556.78, 15,833.34 and 6,423.35 is: 9,633.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,556.78 : 15,833.34 = 6,423.35 : x
  2. Step 2: Convert to fraction form
    10,556.78/15,833.34 = 6,423.35/x
  3. Step 3: Cross multiply
    10,556.78x = 15,833.34 × 6,423.35
  4. Step 4: Simplify right side
    10,556.78x = 101,703,005.32
  5. Step 5: Solve for x
    x = 101,703,005.32/10,556.78
  6. Step 6: Final answer
    x = 9,633.91

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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.