Home / 13,431.84-18,536.04-7,464.06

Finding the Fourth Proportional to 13,431.84, 18,536.04 and 7,464.06

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Solution

The fourth proportional to 13,431.84, 18,536.04 and 7,464.06 is: 10,300.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,431.84 : 18,536.04 = 7,464.06 : x
  2. Step 2: Convert to fraction form
    13,431.84/18,536.04 = 7,464.06/x
  3. Step 3: Cross multiply
    13,431.84x = 18,536.04 × 7,464.06
  4. Step 4: Simplify right side
    13,431.84x = 138,354,114.72
  5. Step 5: Solve for x
    x = 138,354,114.72/13,431.84
  6. Step 6: Final answer
    x = 10,300.46

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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.