Home / 11,798.16-16,281.16-6,420.37

Finding the Fourth Proportional to 11,798.16, 16,281.16 and 6,420.37

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Solution

The fourth proportional to 11,798.16, 16,281.16 and 6,420.37 is: 8,859.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,798.16 : 16,281.16 = 6,420.37 : x
  2. Step 2: Convert to fraction form
    11,798.16/16,281.16 = 6,420.37/x
  3. Step 3: Cross multiply
    11,798.16x = 16,281.16 × 6,420.37
  4. Step 4: Simplify right side
    11,798.16x = 104,531,071.23
  5. Step 5: Solve for x
    x = 104,531,071.23/11,798.16
  6. Step 6: Final answer
    x = 8,859.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.