Home / 10,443.40-15,665.02-8,376.36

Finding the Fourth Proportional to 10,443.40, 15,665.02 and 8,376.36

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Solution

The fourth proportional to 10,443.40, 15,665.02 and 8,376.36 is: 12,564.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,443.40 : 15,665.02 = 8,376.36 : x
  2. Step 2: Convert to fraction form
    10,443.40/15,665.02 = 8,376.36/x
  3. Step 3: Cross multiply
    10,443.40x = 15,665.02 × 8,376.36
  4. Step 4: Simplify right side
    10,443.40x = 131,215,846.93
  5. Step 5: Solve for x
    x = 131,215,846.93/10,443.40
  6. Step 6: Final answer
    x = 12,564.48

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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.