Home / 12,004.84-18,009.06-5,430.88

Finding the Fourth Proportional to 12,004.84, 18,009.06 and 5,430.88

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Solution

The fourth proportional to 12,004.84, 18,009.06 and 5,430.88 is: 8,147.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,004.84 : 18,009.06 = 5,430.88 : x
  2. Step 2: Convert to fraction form
    12,004.84/18,009.06 = 5,430.88/x
  3. Step 3: Cross multiply
    12,004.84x = 18,009.06 × 5,430.88
  4. Step 4: Simplify right side
    12,004.84x = 97,805,043.77
  5. Step 5: Solve for x
    x = 97,805,043.77/12,004.84
  6. Step 6: Final answer
    x = 8,147.13

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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.