Home / 14,313.08-19,748.73-12,421.32

Finding the Fourth Proportional to 14,313.08, 19,748.73 and 12,421.32

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Solution

The fourth proportional to 14,313.08, 19,748.73 and 12,421.32 is: 17,138.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,313.08 : 19,748.73 = 12,421.32 : x
  2. Step 2: Convert to fraction form
    14,313.08/19,748.73 = 12,421.32/x
  3. Step 3: Cross multiply
    14,313.08x = 19,748.73 × 12,421.32
  4. Step 4: Simplify right side
    14,313.08x = 245,305,294.92
  5. Step 5: Solve for x
    x = 245,305,294.92/14,313.08
  6. Step 6: Final answer
    x = 17,138.54

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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.