Home / 19,485.15-26,889.81-11,101.47

Finding the Fourth Proportional to 19,485.15, 26,889.81 and 11,101.47

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Solution

The fourth proportional to 19,485.15, 26,889.81 and 11,101.47 is: 15,320.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,485.15 : 26,889.81 = 11,101.47 : x
  2. Step 2: Convert to fraction form
    19,485.15/26,889.81 = 11,101.47/x
  3. Step 3: Cross multiply
    19,485.15x = 26,889.81 × 11,101.47
  4. Step 4: Simplify right side
    19,485.15x = 298,516,419.02
  5. Step 5: Solve for x
    x = 298,516,419.02/19,485.15
  6. Step 6: Final answer
    x = 15,320.20

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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.