Home / 13,115.34-19,681.23-5,324.16

Finding the Fourth Proportional to 13,115.34, 19,681.23 and 5,324.16

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Solution

The fourth proportional to 13,115.34, 19,681.23 and 5,324.16 is: 7,989.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,115.34 : 19,681.23 = 5,324.16 : x
  2. Step 2: Convert to fraction form
    13,115.34/19,681.23 = 5,324.16/x
  3. Step 3: Cross multiply
    13,115.34x = 19,681.23 × 5,324.16
  4. Step 4: Simplify right side
    13,115.34x = 104,786,017.52
  5. Step 5: Solve for x
    x = 104,786,017.52/13,115.34
  6. Step 6: Final answer
    x = 7,989.58

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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.