Home / 15,071.27-20,798.86-8,356.50

Finding the Fourth Proportional to 15,071.27, 20,798.86 and 8,356.50

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Solution

The fourth proportional to 15,071.27, 20,798.86 and 8,356.50 is: 11,532.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,071.27 : 20,798.86 = 8,356.50 : x
  2. Step 2: Convert to fraction form
    15,071.27/20,798.86 = 8,356.50/x
  3. Step 3: Cross multiply
    15,071.27x = 20,798.86 × 8,356.50
  4. Step 4: Simplify right side
    15,071.27x = 173,805,673.59
  5. Step 5: Solve for x
    x = 173,805,673.59/15,071.27
  6. Step 6: Final answer
    x = 11,532.26

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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.