Home / 12,403.46-18,562.28-7,657.67

Finding the Fourth Proportional to 12,403.46, 18,562.28 and 7,657.67

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Solution

The fourth proportional to 12,403.46, 18,562.28 and 7,657.67 is: 11,460.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,403.46 : 18,562.28 = 7,657.67 : x
  2. Step 2: Convert to fraction form
    12,403.46/18,562.28 = 7,657.67/x
  3. Step 3: Cross multiply
    12,403.46x = 18,562.28 × 7,657.67
  4. Step 4: Simplify right side
    12,403.46x = 142,143,683.59
  5. Step 5: Solve for x
    x = 142,143,683.59/12,403.46
  6. Step 6: Final answer
    x = 11,460.01

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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.