Home / 19,480.45-26,870.55-13,509.94

Finding the Fourth Proportional to 19,480.45, 26,870.55 and 13,509.94

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Solution

The fourth proportional to 19,480.45, 26,870.55 and 13,509.94 is: 18,635.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,480.45 : 26,870.55 = 13,509.94 : x
  2. Step 2: Convert to fraction form
    19,480.45/26,870.55 = 13,509.94/x
  3. Step 3: Cross multiply
    19,480.45x = 26,870.55 × 13,509.94
  4. Step 4: Simplify right side
    19,480.45x = 363,019,388.04
  5. Step 5: Solve for x
    x = 363,019,388.04/19,480.45
  6. Step 6: Final answer
    x = 18,635.07

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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.