Home / 10,070.30-15,090.60-7,302.80

Finding the Fourth Proportional to 10,070.30, 15,090.60 and 7,302.80

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Solution

The fourth proportional to 10,070.30, 15,090.60 and 7,302.80 is: 10,943.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,070.30 : 15,090.60 = 7,302.80 : x
  2. Step 2: Convert to fraction form
    10,070.30/15,090.60 = 7,302.80/x
  3. Step 3: Cross multiply
    10,070.30x = 15,090.60 × 7,302.80
  4. Step 4: Simplify right side
    10,070.30x = 110,203,633.68
  5. Step 5: Solve for x
    x = 110,203,633.68/10,070.30
  6. Step 6: Final answer
    x = 10,943.43

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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.