Home / 13,682.04-18,881.19-7,394.40

Finding the Fourth Proportional to 13,682.04, 18,881.19 and 7,394.40

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Solution

The fourth proportional to 13,682.04, 18,881.19 and 7,394.40 is: 10,204.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,682.04 : 18,881.19 = 7,394.40 : x
  2. Step 2: Convert to fraction form
    13,682.04/18,881.19 = 7,394.40/x
  3. Step 3: Cross multiply
    13,682.04x = 18,881.19 × 7,394.40
  4. Step 4: Simplify right side
    13,682.04x = 139,615,071.34
  5. Step 5: Solve for x
    x = 139,615,071.34/13,682.04
  6. Step 6: Final answer
    x = 10,204.26

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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.