Home / 13,384.13-18,469.16-7,415.24

Finding the Fourth Proportional to 13,384.13, 18,469.16 and 7,415.24

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Solution

The fourth proportional to 13,384.13, 18,469.16 and 7,415.24 is: 10,232.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,384.13 : 18,469.16 = 7,415.24 : x
  2. Step 2: Convert to fraction form
    13,384.13/18,469.16 = 7,415.24/x
  3. Step 3: Cross multiply
    13,384.13x = 18,469.16 × 7,415.24
  4. Step 4: Simplify right side
    13,384.13x = 136,953,124.58
  5. Step 5: Solve for x
    x = 136,953,124.58/13,384.13
  6. Step 6: Final answer
    x = 10,232.50

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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.