Home / 13,811.76-19,071.48-11,259.93

Finding the Fourth Proportional to 13,811.76, 19,071.48 and 11,259.93

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Solution

The fourth proportional to 13,811.76, 19,071.48 and 11,259.93 is: 15,547.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,811.76 : 19,071.48 = 11,259.93 : x
  2. Step 2: Convert to fraction form
    13,811.76/19,071.48 = 11,259.93/x
  3. Step 3: Cross multiply
    13,811.76x = 19,071.48 × 11,259.93
  4. Step 4: Simplify right side
    13,811.76x = 214,743,529.80
  5. Step 5: Solve for x
    x = 214,743,529.80/13,811.76
  6. Step 6: Final answer
    x = 15,547.88

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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.