Home / 10,284.04-15,405.51-4,729.78

Finding the Fourth Proportional to 10,284.04, 15,405.51 and 4,729.78

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Solution

The fourth proportional to 10,284.04, 15,405.51 and 4,729.78 is: 7,085.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,284.04 : 15,405.51 = 4,729.78 : x
  2. Step 2: Convert to fraction form
    10,284.04/15,405.51 = 4,729.78/x
  3. Step 3: Cross multiply
    10,284.04x = 15,405.51 × 4,729.78
  4. Step 4: Simplify right side
    10,284.04x = 72,864,673.09
  5. Step 5: Solve for x
    x = 72,864,673.09/10,284.04
  6. Step 6: Final answer
    x = 7,085.22

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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.