Home / 15,071.99-20,798.33-8,357.36

Finding the Fourth Proportional to 15,071.99, 20,798.33 and 8,357.36

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Solution

The fourth proportional to 15,071.99, 20,798.33 and 8,357.36 is: 11,532.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,071.99 : 20,798.33 = 8,357.36 : x
  2. Step 2: Convert to fraction form
    15,071.99/20,798.33 = 8,357.36/x
  3. Step 3: Cross multiply
    15,071.99x = 20,798.33 × 8,357.36
  4. Step 4: Simplify right side
    15,071.99x = 173,819,102.42
  5. Step 5: Solve for x
    x = 173,819,102.42/15,071.99
  6. Step 6: Final answer
    x = 11,532.60

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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.