Home / 19,970.99-27,558.69-11,018.49

Finding the Fourth Proportional to 19,970.99, 27,558.69 and 11,018.49

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Solution

The fourth proportional to 19,970.99, 27,558.69 and 11,018.49 is: 15,204.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,970.99 : 27,558.69 = 11,018.49 : x
  2. Step 2: Convert to fraction form
    19,970.99/27,558.69 = 11,018.49/x
  3. Step 3: Cross multiply
    19,970.99x = 27,558.69 × 11,018.49
  4. Step 4: Simplify right side
    19,970.99x = 303,655,160.53
  5. Step 5: Solve for x
    x = 303,655,160.53/19,970.99
  6. Step 6: Final answer
    x = 15,204.81

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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.