Home / 13,210.36-19,818.13-4,890.45

Finding the Fourth Proportional to 13,210.36, 19,818.13 and 4,890.45

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Solution

The fourth proportional to 13,210.36, 19,818.13 and 4,890.45 is: 7,336.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,210.36 : 19,818.13 = 4,890.45 : x
  2. Step 2: Convert to fraction form
    13,210.36/19,818.13 = 4,890.45/x
  3. Step 3: Cross multiply
    13,210.36x = 19,818.13 × 4,890.45
  4. Step 4: Simplify right side
    13,210.36x = 96,919,505.65
  5. Step 5: Solve for x
    x = 96,919,505.65/13,210.36
  6. Step 6: Final answer
    x = 7,336.63

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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.