Home / 14,058.49-19,400.90-7,685.21

Finding the Fourth Proportional to 14,058.49, 19,400.90 and 7,685.21

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Solution

The fourth proportional to 14,058.49, 19,400.90 and 7,685.21 is: 10,605.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,058.49 : 19,400.90 = 7,685.21 : x
  2. Step 2: Convert to fraction form
    14,058.49/19,400.90 = 7,685.21/x
  3. Step 3: Cross multiply
    14,058.49x = 19,400.90 × 7,685.21
  4. Step 4: Simplify right side
    14,058.49x = 149,099,990.69
  5. Step 5: Solve for x
    x = 149,099,990.69/14,058.49
  6. Step 6: Final answer
    x = 10,605.69

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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.