Home / 10,393.20-14,346.72-6,415.92

Finding the Fourth Proportional to 10,393.20, 14,346.72 and 6,415.92

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Solution

The fourth proportional to 10,393.20, 14,346.72 and 6,415.92 is: 8,856.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,393.20 : 14,346.72 = 6,415.92 : x
  2. Step 2: Convert to fraction form
    10,393.20/14,346.72 = 6,415.92/x
  3. Step 3: Cross multiply
    10,393.20x = 14,346.72 × 6,415.92
  4. Step 4: Simplify right side
    10,393.20x = 92,047,407.78
  5. Step 5: Solve for x
    x = 92,047,407.78/10,393.20
  6. Step 6: Final answer
    x = 8,856.50

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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.