Home / 7,615.90-11,424.29-4,305.30

Finding the Fourth Proportional to 7,615.90, 11,424.29 and 4,305.30

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Solution

The fourth proportional to 7,615.90, 11,424.29 and 4,305.30 is: 6,458.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,615.90 : 11,424.29 = 4,305.30 : x
  2. Step 2: Convert to fraction form
    7,615.90/11,424.29 = 4,305.30/x
  3. Step 3: Cross multiply
    7,615.90x = 11,424.29 × 4,305.30
  4. Step 4: Simplify right side
    7,615.90x = 49,184,995.74
  5. Step 5: Solve for x
    x = 49,184,995.74/7,615.90
  6. Step 6: Final answer
    x = 6,458.20

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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.