Home / 15,071.51-20,798.93-8,357.42

Finding the Fourth Proportional to 15,071.51, 20,798.93 and 8,357.42

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Solution

The fourth proportional to 15,071.51, 20,798.93 and 8,357.42 is: 11,533.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,071.51 : 20,798.93 = 8,357.42 : x
  2. Step 2: Convert to fraction form
    15,071.51/20,798.93 = 8,357.42/x
  3. Step 3: Cross multiply
    15,071.51x = 20,798.93 × 8,357.42
  4. Step 4: Simplify right side
    15,071.51x = 173,825,247.78
  5. Step 5: Solve for x
    x = 173,825,247.78/15,071.51
  6. Step 6: Final answer
    x = 11,533.37

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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.