Home / 10,070.59-15,090.36-5,391.22

Finding the Fourth Proportional to 10,070.59, 15,090.36 and 5,391.22

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Solution

The fourth proportional to 10,070.59, 15,090.36 and 5,391.22 is: 8,078.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,070.59 : 15,090.36 = 5,391.22 : x
  2. Step 2: Convert to fraction form
    10,070.59/15,090.36 = 5,391.22/x
  3. Step 3: Cross multiply
    10,070.59x = 15,090.36 × 5,391.22
  4. Step 4: Simplify right side
    10,070.59x = 81,355,450.64
  5. Step 5: Solve for x
    x = 81,355,450.64/10,070.59
  6. Step 6: Final answer
    x = 8,078.52

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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.