Home / 13,329.14-19,989.09-7,415.01

Finding the Fourth Proportional to 13,329.14, 19,989.09 and 7,415.01

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Solution

The fourth proportional to 13,329.14, 19,989.09 and 7,415.01 is: 11,119.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,329.14 : 19,989.09 = 7,415.01 : x
  2. Step 2: Convert to fraction form
    13,329.14/19,989.09 = 7,415.01/x
  3. Step 3: Cross multiply
    13,329.14x = 19,989.09 × 7,415.01
  4. Step 4: Simplify right side
    13,329.14x = 148,219,302.24
  5. Step 5: Solve for x
    x = 148,219,302.24/13,329.14
  6. Step 6: Final answer
    x = 11,119.95

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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.