Home / 14,214.45-19,615.67-7,841.64

Finding the Fourth Proportional to 14,214.45, 19,615.67 and 7,841.64

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Solution

The fourth proportional to 14,214.45, 19,615.67 and 7,841.64 is: 10,821.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,214.45 : 19,615.67 = 7,841.64 : x
  2. Step 2: Convert to fraction form
    14,214.45/19,615.67 = 7,841.64/x
  3. Step 3: Cross multiply
    14,214.45x = 19,615.67 × 7,841.64
  4. Step 4: Simplify right side
    14,214.45x = 153,818,983.29
  5. Step 5: Solve for x
    x = 153,818,983.29/14,214.45
  6. Step 6: Final answer
    x = 10,821.31

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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.