Home / 10,355.40-15,533.36-3,781.59

Finding the Fourth Proportional to 10,355.40, 15,533.36 and 3,781.59

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Solution

The fourth proportional to 10,355.40, 15,533.36 and 3,781.59 is: 5,672.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,355.40 : 15,533.36 = 3,781.59 : x
  2. Step 2: Convert to fraction form
    10,355.40/15,533.36 = 3,781.59/x
  3. Step 3: Cross multiply
    10,355.40x = 15,533.36 × 3,781.59
  4. Step 4: Simplify right side
    10,355.40x = 58,740,779.93
  5. Step 5: Solve for x
    x = 58,740,779.93/10,355.40
  6. Step 6: Final answer
    x = 5,672.48

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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.