Home / 11,921.02-17,875.70-3,599.48

Finding the Fourth Proportional to 11,921.02, 17,875.70 and 3,599.48

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Solution

The fourth proportional to 11,921.02, 17,875.70 and 3,599.48 is: 5,397.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,921.02 : 17,875.70 = 3,599.48 : x
  2. Step 2: Convert to fraction form
    11,921.02/17,875.70 = 3,599.48/x
  3. Step 3: Cross multiply
    11,921.02x = 17,875.70 × 3,599.48
  4. Step 4: Simplify right side
    11,921.02x = 64,343,224.64
  5. Step 5: Solve for x
    x = 64,343,224.64/11,921.02
  6. Step 6: Final answer
    x = 5,397.46

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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.