Home / 14,031.95-19,364.28-8,289.60

Finding the Fourth Proportional to 14,031.95, 19,364.28 and 8,289.60

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Solution

The fourth proportional to 14,031.95, 19,364.28 and 8,289.60 is: 11,439.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,031.95 : 19,364.28 = 8,289.60 : x
  2. Step 2: Convert to fraction form
    14,031.95/19,364.28 = 8,289.60/x
  3. Step 3: Cross multiply
    14,031.95x = 19,364.28 × 8,289.60
  4. Step 4: Simplify right side
    14,031.95x = 160,522,109.56
  5. Step 5: Solve for x
    x = 160,522,109.56/14,031.95
  6. Step 6: Final answer
    x = 11,439.76

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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.