Home / 13,115.76-19,687.08-10,225.68

Finding the Fourth Proportional to 13,115.76, 19,687.08 and 10,225.68

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Solution

The fourth proportional to 13,115.76, 19,687.08 and 10,225.68 is: 15,349.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,115.76 : 19,687.08 = 10,225.68 : x
  2. Step 2: Convert to fraction form
    13,115.76/19,687.08 = 10,225.68/x
  3. Step 3: Cross multiply
    13,115.76x = 19,687.08 × 10,225.68
  4. Step 4: Simplify right side
    13,115.76x = 201,313,780.21
  5. Step 5: Solve for x
    x = 201,313,780.21/13,115.76
  6. Step 6: Final answer
    x = 15,349.00

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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.