Home / 10,665.30-15,999.19-4,424.52

Finding the Fourth Proportional to 10,665.30, 15,999.19 and 4,424.52

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Solution

The fourth proportional to 10,665.30, 15,999.19 and 4,424.52 is: 6,637.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,665.30 : 15,999.19 = 4,424.52 : x
  2. Step 2: Convert to fraction form
    10,665.30/15,999.19 = 4,424.52/x
  3. Step 3: Cross multiply
    10,665.30x = 15,999.19 × 4,424.52
  4. Step 4: Simplify right side
    10,665.30x = 70,788,785.07
  5. Step 5: Solve for x
    x = 70,788,785.07/10,665.30
  6. Step 6: Final answer
    x = 6,637.30

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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.