Home / 19,419.37-26,798.47-10,921.49

Finding the Fourth Proportional to 19,419.37, 26,798.47 and 10,921.49

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Solution

The fourth proportional to 19,419.37, 26,798.47 and 10,921.49 is: 15,071.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,419.37 : 26,798.47 = 10,921.49 : x
  2. Step 2: Convert to fraction form
    19,419.37/26,798.47 = 10,921.49/x
  3. Step 3: Cross multiply
    19,419.37x = 26,798.47 × 10,921.49
  4. Step 4: Simplify right side
    19,419.37x = 292,679,088.13
  5. Step 5: Solve for x
    x = 292,679,088.13/19,419.37
  6. Step 6: Final answer
    x = 15,071.51

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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.