Home / 13,380.14-18,464.63-7,411.70

Finding the Fourth Proportional to 13,380.14, 18,464.63 and 7,411.70

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Solution

The fourth proportional to 13,380.14, 18,464.63 and 7,411.70 is: 10,228.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,380.14 : 18,464.63 = 7,411.70 : x
  2. Step 2: Convert to fraction form
    13,380.14/18,464.63 = 7,411.70/x
  3. Step 3: Cross multiply
    13,380.14x = 18,464.63 × 7,411.70
  4. Step 4: Simplify right side
    13,380.14x = 136,854,307.27
  5. Step 5: Solve for x
    x = 136,854,307.27/13,380.14
  6. Step 6: Final answer
    x = 10,228.17

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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.