Home / 12,880.24-19,303.45-9,334.26

Finding the Fourth Proportional to 12,880.24, 19,303.45 and 9,334.26

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Solution

The fourth proportional to 12,880.24, 19,303.45 and 9,334.26 is: 13,989.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,880.24 : 19,303.45 = 9,334.26 : x
  2. Step 2: Convert to fraction form
    12,880.24/19,303.45 = 9,334.26/x
  3. Step 3: Cross multiply
    12,880.24x = 19,303.45 × 9,334.26
  4. Step 4: Simplify right side
    12,880.24x = 180,183,397.86
  5. Step 5: Solve for x
    x = 180,183,397.86/12,880.24
  6. Step 6: Final answer
    x = 13,989.14

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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.