Home / 15,071.09-20,798.00-8,356.72

Finding the Fourth Proportional to 15,071.09, 20,798.00 and 8,356.72

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Solution

The fourth proportional to 15,071.09, 20,798.00 and 8,356.72 is: 11,532.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,071.09 : 20,798.00 = 8,356.72 : x
  2. Step 2: Convert to fraction form
    15,071.09/20,798.00 = 8,356.72/x
  3. Step 3: Cross multiply
    15,071.09x = 20,798.00 × 8,356.72
  4. Step 4: Simplify right side
    15,071.09x = 173,802,968.78
  5. Step 5: Solve for x
    x = 173,802,968.78/15,071.09
  6. Step 6: Final answer
    x = 11,532.21

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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.