Home / 13,318.24-19,977.38-12,506.32

Finding the Fourth Proportional to 13,318.24, 19,977.38 and 12,506.32

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Solution

The fourth proportional to 13,318.24, 19,977.38 and 12,506.32 is: 18,759.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,318.24 : 19,977.38 = 12,506.32 : x
  2. Step 2: Convert to fraction form
    13,318.24/19,977.38 = 12,506.32/x
  3. Step 3: Cross multiply
    13,318.24x = 19,977.38 × 12,506.32
  4. Step 4: Simplify right side
    13,318.24x = 249,843,507.04
  5. Step 5: Solve for x
    x = 249,843,507.04/13,318.24
  6. Step 6: Final answer
    x = 18,759.50

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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.