Home / 13,126.56-19,689.84-4,807.68

Finding the Fourth Proportional to 13,126.56, 19,689.84 and 4,807.68

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Solution

The fourth proportional to 13,126.56, 19,689.84 and 4,807.68 is: 7,211.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,126.56 : 19,689.84 = 4,807.68 : x
  2. Step 2: Convert to fraction form
    13,126.56/19,689.84 = 4,807.68/x
  3. Step 3: Cross multiply
    13,126.56x = 19,689.84 × 4,807.68
  4. Step 4: Simplify right side
    13,126.56x = 94,662,449.97
  5. Step 5: Solve for x
    x = 94,662,449.97/13,126.56
  6. Step 6: Final answer
    x = 7,211.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.