Home / 13,576.72-18,759.18-9,792.40

Finding the Fourth Proportional to 13,576.72, 18,759.18 and 9,792.40

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Solution

The fourth proportional to 13,576.72, 18,759.18 and 9,792.40 is: 13,530.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,576.72 : 18,759.18 = 9,792.40 : x
  2. Step 2: Convert to fraction form
    13,576.72/18,759.18 = 9,792.40/x
  3. Step 3: Cross multiply
    13,576.72x = 18,759.18 × 9,792.40
  4. Step 4: Simplify right side
    13,576.72x = 183,697,394.23
  5. Step 5: Solve for x
    x = 183,697,394.23/13,576.72
  6. Step 6: Final answer
    x = 13,530.32

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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.