Home / 15,299.03-21,134.16-11,807.12

Finding the Fourth Proportional to 15,299.03, 21,134.16 and 11,807.12

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Solution

The fourth proportional to 15,299.03, 21,134.16 and 11,807.12 is: 16,310.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,299.03 : 21,134.16 = 11,807.12 : x
  2. Step 2: Convert to fraction form
    15,299.03/21,134.16 = 11,807.12/x
  3. Step 3: Cross multiply
    15,299.03x = 21,134.16 × 11,807.12
  4. Step 4: Simplify right side
    15,299.03x = 249,533,457.55
  5. Step 5: Solve for x
    x = 249,533,457.55/15,299.03
  6. Step 6: Final answer
    x = 16,310.42

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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.