Home / 19,287.36-26,611.20-10,903.68

Finding the Fourth Proportional to 19,287.36, 26,611.20 and 10,903.68

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Solution

The fourth proportional to 19,287.36, 26,611.20 and 10,903.68 is: 15,044.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,287.36 : 26,611.20 = 10,903.68 : x
  2. Step 2: Convert to fraction form
    19,287.36/26,611.20 = 10,903.68/x
  3. Step 3: Cross multiply
    19,287.36x = 26,611.20 × 10,903.68
  4. Step 4: Simplify right side
    19,287.36x = 290,160,009.22
  5. Step 5: Solve for x
    x = 290,160,009.22/19,287.36
  6. Step 6: Final answer
    x = 15,044.05

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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.