Home / 13,356.24-18,417.96-8,880.72

Finding the Fourth Proportional to 13,356.24, 18,417.96 and 8,880.72

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Solution

The fourth proportional to 13,356.24, 18,417.96 and 8,880.72 is: 12,246.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,356.24 : 18,417.96 = 8,880.72 : x
  2. Step 2: Convert to fraction form
    13,356.24/18,417.96 = 8,880.72/x
  3. Step 3: Cross multiply
    13,356.24x = 18,417.96 × 8,880.72
  4. Step 4: Simplify right side
    13,356.24x = 163,564,745.73
  5. Step 5: Solve for x
    x = 163,564,745.73/13,356.24
  6. Step 6: Final answer
    x = 12,246.32

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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.