Home / 14,059.20-19,402.20-8,396.40

Finding the Fourth Proportional to 14,059.20, 19,402.20 and 8,396.40

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Solution

The fourth proportional to 14,059.20, 19,402.20 and 8,396.40 is: 11,587.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,059.20 : 19,402.20 = 8,396.40 : x
  2. Step 2: Convert to fraction form
    14,059.20/19,402.20 = 8,396.40/x
  3. Step 3: Cross multiply
    14,059.20x = 19,402.20 × 8,396.40
  4. Step 4: Simplify right side
    14,059.20x = 162,908,632.08
  5. Step 5: Solve for x
    x = 162,908,632.08/14,059.20
  6. Step 6: Final answer
    x = 11,587.33

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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.