Home / 10,447.18-15,674.77-6,290.16

Finding the Fourth Proportional to 10,447.18, 15,674.77 and 6,290.16

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Solution

The fourth proportional to 10,447.18, 15,674.77 and 6,290.16 is: 9,437.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,447.18 : 15,674.77 = 6,290.16 : x
  2. Step 2: Convert to fraction form
    10,447.18/15,674.77 = 6,290.16/x
  3. Step 3: Cross multiply
    10,447.18x = 15,674.77 × 6,290.16
  4. Step 4: Simplify right side
    10,447.18x = 98,596,724.96
  5. Step 5: Solve for x
    x = 98,596,724.96/10,447.18
  6. Step 6: Final answer
    x = 9,437.64

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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.