Home / 13,931.40-19,214.60-9,682.42

Finding the Fourth Proportional to 13,931.40, 19,214.60 and 9,682.42

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Solution

The fourth proportional to 13,931.40, 19,214.60 and 9,682.42 is: 13,354.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,931.40 : 19,214.60 = 9,682.42 : x
  2. Step 2: Convert to fraction form
    13,931.40/19,214.60 = 9,682.42/x
  3. Step 3: Cross multiply
    13,931.40x = 19,214.60 × 9,682.42
  4. Step 4: Simplify right side
    13,931.40x = 186,043,827.33
  5. Step 5: Solve for x
    x = 186,043,827.33/13,931.40
  6. Step 6: Final answer
    x = 13,354.28

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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.