Home / 14,028.72-19,385.29-13,345.35

Finding the Fourth Proportional to 14,028.72, 19,385.29 and 13,345.35

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Solution

The fourth proportional to 14,028.72, 19,385.29 and 13,345.35 is: 18,440.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,028.72 : 19,385.29 = 13,345.35 : x
  2. Step 2: Convert to fraction form
    14,028.72/19,385.29 = 13,345.35/x
  3. Step 3: Cross multiply
    14,028.72x = 19,385.29 × 13,345.35
  4. Step 4: Simplify right side
    14,028.72x = 258,703,479.90
  5. Step 5: Solve for x
    x = 258,703,479.90/14,028.72
  6. Step 6: Final answer
    x = 18,440.99

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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.