Home / 11,100.42-15,316.02-9,419.22

Finding the Fourth Proportional to 11,100.42, 15,316.02 and 9,419.22

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Solution

The fourth proportional to 11,100.42, 15,316.02 and 9,419.22 is: 12,996.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,100.42 : 15,316.02 = 9,419.22 : x
  2. Step 2: Convert to fraction form
    11,100.42/15,316.02 = 9,419.22/x
  3. Step 3: Cross multiply
    11,100.42x = 15,316.02 × 9,419.22
  4. Step 4: Simplify right side
    11,100.42x = 144,264,961.90
  5. Step 5: Solve for x
    x = 144,264,961.90/11,100.42
  6. Step 6: Final answer
    x = 12,996.35

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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.