Home / 7,815.03-10,784.73-4,278.24

Finding the Fourth Proportional to 7,815.03, 10,784.73 and 4,278.24

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Solution

The fourth proportional to 7,815.03, 10,784.73 and 4,278.24 is: 5,903.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,815.03 : 10,784.73 = 4,278.24 : x
  2. Step 2: Convert to fraction form
    7,815.03/10,784.73 = 4,278.24/x
  3. Step 3: Cross multiply
    7,815.03x = 10,784.73 × 4,278.24
  4. Step 4: Simplify right side
    7,815.03x = 46,139,663.28
  5. Step 5: Solve for x
    x = 46,139,663.28/7,815.03
  6. Step 6: Final answer
    x = 5,903.96

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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.