Home / 12,573.81-18,856.26-3,686.67

Finding the Fourth Proportional to 12,573.81, 18,856.26 and 3,686.67

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Solution

The fourth proportional to 12,573.81, 18,856.26 and 3,686.67 is: 5,528.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,573.81 : 18,856.26 = 3,686.67 : x
  2. Step 2: Convert to fraction form
    12,573.81/18,856.26 = 3,686.67/x
  3. Step 3: Cross multiply
    12,573.81x = 18,856.26 × 3,686.67
  4. Step 4: Simplify right side
    12,573.81x = 69,516,808.05
  5. Step 5: Solve for x
    x = 69,516,808.05/12,573.81
  6. Step 6: Final answer
    x = 5,528.70

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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.