Home / 15,071.82-20,798.55-8,357.52

Finding the Fourth Proportional to 15,071.82, 20,798.55 and 8,357.52

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Solution

The fourth proportional to 15,071.82, 20,798.55 and 8,357.52 is: 11,533.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,071.82 : 20,798.55 = 8,357.52 : x
  2. Step 2: Convert to fraction form
    15,071.82/20,798.55 = 8,357.52/x
  3. Step 3: Cross multiply
    15,071.82x = 20,798.55 × 8,357.52
  4. Step 4: Simplify right side
    15,071.82x = 173,824,297.60
  5. Step 5: Solve for x
    x = 173,824,297.60/15,071.82
  6. Step 6: Final answer
    x = 11,533.07

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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.