Home / 16,807.10-25,210.65-5,120.42

Finding the Fourth Proportional to 16,807.10, 25,210.65 and 5,120.42

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Solution

The fourth proportional to 16,807.10, 25,210.65 and 5,120.42 is: 7,680.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,807.10 : 25,210.65 = 5,120.42 : x
  2. Step 2: Convert to fraction form
    16,807.10/25,210.65 = 5,120.42/x
  3. Step 3: Cross multiply
    16,807.10x = 25,210.65 × 5,120.42
  4. Step 4: Simplify right side
    16,807.10x = 129,088,990.42
  5. Step 5: Solve for x
    x = 129,088,990.42/16,807.10
  6. Step 6: Final answer
    x = 7,680.62

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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.