Home / 13,263.98-18,304.56-7,886.99

Finding the Fourth Proportional to 13,263.98, 18,304.56 and 7,886.99

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Solution

The fourth proportional to 13,263.98, 18,304.56 and 7,886.99 is: 10,884.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,263.98 : 18,304.56 = 7,886.99 : x
  2. Step 2: Convert to fraction form
    13,263.98/18,304.56 = 7,886.99/x
  3. Step 3: Cross multiply
    13,263.98x = 18,304.56 × 7,886.99
  4. Step 4: Simplify right side
    13,263.98x = 144,367,927.44
  5. Step 5: Solve for x
    x = 144,367,927.44/13,263.98
  6. Step 6: Final answer
    x = 10,884.21

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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.