Home / 7,905.56-11,856.51-3,520.63

Finding the Fourth Proportional to 7,905.56, 11,856.51 and 3,520.63

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Solution

The fourth proportional to 7,905.56, 11,856.51 and 3,520.63 is: 5,280.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,905.56 : 11,856.51 = 3,520.63 : x
  2. Step 2: Convert to fraction form
    7,905.56/11,856.51 = 3,520.63/x
  3. Step 3: Cross multiply
    7,905.56x = 11,856.51 × 3,520.63
  4. Step 4: Simplify right side
    7,905.56x = 41,742,384.80
  5. Step 5: Solve for x
    x = 41,742,384.80/7,905.56
  6. Step 6: Final answer
    x = 5,280.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.