Home / 14,090.79-19,445.31-7,803.21

Finding the Fourth Proportional to 14,090.79, 19,445.31 and 7,803.21

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Solution

The fourth proportional to 14,090.79, 19,445.31 and 7,803.21 is: 10,768.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,090.79 : 19,445.31 = 7,803.21 : x
  2. Step 2: Convert to fraction form
    14,090.79/19,445.31 = 7,803.21/x
  3. Step 3: Cross multiply
    14,090.79x = 19,445.31 × 7,803.21
  4. Step 4: Simplify right side
    14,090.79x = 151,735,837.45
  5. Step 5: Solve for x
    x = 151,735,837.45/14,090.79
  6. Step 6: Final answer
    x = 10,768.44

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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.