Home / 14,418.18-19,903.50-9,645.66

Finding the Fourth Proportional to 14,418.18, 19,903.50 and 9,645.66

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Solution

The fourth proportional to 14,418.18, 19,903.50 and 9,645.66 is: 13,315.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,418.18 : 19,903.50 = 9,645.66 : x
  2. Step 2: Convert to fraction form
    14,418.18/19,903.50 = 9,645.66/x
  3. Step 3: Cross multiply
    14,418.18x = 19,903.50 × 9,645.66
  4. Step 4: Simplify right side
    14,418.18x = 191,982,393.81
  5. Step 5: Solve for x
    x = 191,982,393.81/14,418.18
  6. Step 6: Final answer
    x = 13,315.30

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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.