Home / 13,931.18-19,214.28-9,682.15

Finding the Fourth Proportional to 13,931.18, 19,214.28 and 9,682.15

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Solution

The fourth proportional to 13,931.18, 19,214.28 and 9,682.15 is: 13,353.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,931.18 : 19,214.28 = 9,682.15 : x
  2. Step 2: Convert to fraction form
    13,931.18/19,214.28 = 9,682.15/x
  3. Step 3: Cross multiply
    13,931.18x = 19,214.28 × 9,682.15
  4. Step 4: Simplify right side
    13,931.18x = 186,035,541.10
  5. Step 5: Solve for x
    x = 186,035,541.10/13,931.18
  6. Step 6: Final answer
    x = 13,353.90

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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.