Home / 10,284.20-15,405.74-4,729.93

Finding the Fourth Proportional to 10,284.20, 15,405.74 and 4,729.93

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Solution

The fourth proportional to 10,284.20, 15,405.74 and 4,729.93 is: 7,085.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,284.20 : 15,405.74 = 4,729.93 : x
  2. Step 2: Convert to fraction form
    10,284.20/15,405.74 = 4,729.93/x
  3. Step 3: Cross multiply
    10,284.20x = 15,405.74 × 4,729.93
  4. Step 4: Simplify right side
    10,284.20x = 72,868,053.98
  5. Step 5: Solve for x
    x = 72,868,053.98/10,284.20
  6. Step 6: Final answer
    x = 7,085.44

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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.