Home / 12,999.89-19,501.88-5,606.45

Finding the Fourth Proportional to 12,999.89, 19,501.88 and 5,606.45

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Solution

The fourth proportional to 12,999.89, 19,501.88 and 5,606.45 is: 8,410.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,999.89 : 19,501.88 = 5,606.45 : x
  2. Step 2: Convert to fraction form
    12,999.89/19,501.88 = 5,606.45/x
  3. Step 3: Cross multiply
    12,999.89x = 19,501.88 × 5,606.45
  4. Step 4: Simplify right side
    12,999.89x = 109,336,315.13
  5. Step 5: Solve for x
    x = 109,336,315.13/12,999.89
  6. Step 6: Final answer
    x = 8,410.56

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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.