Home / 12,039.84-18,057.60-5,018.40

Finding the Fourth Proportional to 12,039.84, 18,057.60 and 5,018.40

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Solution

The fourth proportional to 12,039.84, 18,057.60 and 5,018.40 is: 7,526.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,039.84 : 18,057.60 = 5,018.40 : x
  2. Step 2: Convert to fraction form
    12,039.84/18,057.60 = 5,018.40/x
  3. Step 3: Cross multiply
    12,039.84x = 18,057.60 × 5,018.40
  4. Step 4: Simplify right side
    12,039.84x = 90,620,259.84
  5. Step 5: Solve for x
    x = 90,620,259.84/12,039.84
  6. Step 6: Final answer
    x = 7,526.70

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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.