Home / 10,339.83-15,518.70-5,412.92

Finding the Fourth Proportional to 10,339.83, 15,518.70 and 5,412.92

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Solution

The fourth proportional to 10,339.83, 15,518.70 and 5,412.92 is: 8,124.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,339.83 : 15,518.70 = 5,412.92 : x
  2. Step 2: Convert to fraction form
    10,339.83/15,518.70 = 5,412.92/x
  3. Step 3: Cross multiply
    10,339.83x = 15,518.70 × 5,412.92
  4. Step 4: Simplify right side
    10,339.83x = 84,001,404.01
  5. Step 5: Solve for x
    x = 84,001,404.01/10,339.83
  6. Step 6: Final answer
    x = 8,124.06

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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.