Home / 14,386.66-19,845.20-9,910.15

Finding the Fourth Proportional to 14,386.66, 19,845.20 and 9,910.15

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Solution

The fourth proportional to 14,386.66, 19,845.20 and 9,910.15 is: 13,670.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,386.66 : 19,845.20 = 9,910.15 : x
  2. Step 2: Convert to fraction form
    14,386.66/19,845.20 = 9,910.15/x
  3. Step 3: Cross multiply
    14,386.66x = 19,845.20 × 9,910.15
  4. Step 4: Simplify right side
    14,386.66x = 196,668,883.94
  5. Step 5: Solve for x
    x = 196,668,883.94/14,386.66
  6. Step 6: Final answer
    x = 13,670.22

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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.