Home / 10,807.32-16,210.96-8,345.72

Finding the Fourth Proportional to 10,807.32, 16,210.96 and 8,345.72

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Solution

The fourth proportional to 10,807.32, 16,210.96 and 8,345.72 is: 12,518.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,807.32 : 16,210.96 = 8,345.72 : x
  2. Step 2: Convert to fraction form
    10,807.32/16,210.96 = 8,345.72/x
  3. Step 3: Cross multiply
    10,807.32x = 16,210.96 × 8,345.72
  4. Step 4: Simplify right side
    10,807.32x = 135,292,133.09
  5. Step 5: Solve for x
    x = 135,292,133.09/10,807.32
  6. Step 6: Final answer
    x = 12,518.56

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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.