Home / 10,690.10-16,035.15-9,782.90

Finding the Fourth Proportional to 10,690.10, 16,035.15 and 9,782.90

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Solution

The fourth proportional to 10,690.10, 16,035.15 and 9,782.90 is: 14,674.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,690.10 : 16,035.15 = 9,782.90 : x
  2. Step 2: Convert to fraction form
    10,690.10/16,035.15 = 9,782.90/x
  3. Step 3: Cross multiply
    10,690.10x = 16,035.15 × 9,782.90
  4. Step 4: Simplify right side
    10,690.10x = 156,870,268.94
  5. Step 5: Solve for x
    x = 156,870,268.94/10,690.10
  6. Step 6: Final answer
    x = 14,674.35

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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.