Home / 14,427.48-21,628.23-5,191.32

Finding the Fourth Proportional to 14,427.48, 21,628.23 and 5,191.32

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Solution

The fourth proportional to 14,427.48, 21,628.23 and 5,191.32 is: 7,782.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,427.48 : 21,628.23 = 5,191.32 : x
  2. Step 2: Convert to fraction form
    14,427.48/21,628.23 = 5,191.32/x
  3. Step 3: Cross multiply
    14,427.48x = 21,628.23 × 5,191.32
  4. Step 4: Simplify right side
    14,427.48x = 112,279,062.96
  5. Step 5: Solve for x
    x = 112,279,062.96/14,427.48
  6. Step 6: Final answer
    x = 7,782.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.