Home / 13,931.43-19,226.58-7,645.02

Finding the Fourth Proportional to 13,931.43, 19,226.58 and 7,645.02

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Solution

The fourth proportional to 13,931.43, 19,226.58 and 7,645.02 is: 10,550.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,931.43 : 19,226.58 = 7,645.02 : x
  2. Step 2: Convert to fraction form
    13,931.43/19,226.58 = 7,645.02/x
  3. Step 3: Cross multiply
    13,931.43x = 19,226.58 × 7,645.02
  4. Step 4: Simplify right side
    13,931.43x = 146,987,588.63
  5. Step 5: Solve for x
    x = 146,987,588.63/13,931.43
  6. Step 6: Final answer
    x = 10,550.79

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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.