Home / 9,090.23-12,543.93-5,111.44

Finding the Fourth Proportional to 9,090.23, 12,543.93 and 5,111.44

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Solution

The fourth proportional to 9,090.23, 12,543.93 and 5,111.44 is: 7,053.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,090.23 : 12,543.93 = 5,111.44 : x
  2. Step 2: Convert to fraction form
    9,090.23/12,543.93 = 5,111.44/x
  3. Step 3: Cross multiply
    9,090.23x = 12,543.93 × 5,111.44
  4. Step 4: Simplify right side
    9,090.23x = 64,117,514.20
  5. Step 5: Solve for x
    x = 64,117,514.20/9,090.23
  6. Step 6: Final answer
    x = 7,053.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.