Home / 9,090.68-12,543.66-5,111.00

Finding the Fourth Proportional to 9,090.68, 12,543.66 and 5,111.00

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Solution

The fourth proportional to 9,090.68, 12,543.66 and 5,111.00 is: 7,052.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,090.68 : 12,543.66 = 5,111.00 : x
  2. Step 2: Convert to fraction form
    9,090.68/12,543.66 = 5,111.00/x
  3. Step 3: Cross multiply
    9,090.68x = 12,543.66 × 5,111.00
  4. Step 4: Simplify right side
    9,090.68x = 64,110,630.58
  5. Step 5: Solve for x
    x = 64,110,630.58/9,090.68
  6. Step 6: Final answer
    x = 7,052.35

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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.