Home / 19,417.67-26,796.13-10,921.20

Finding the Fourth Proportional to 19,417.67, 26,796.13 and 10,921.20

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Solution

The fourth proportional to 19,417.67, 26,796.13 and 10,921.20 is: 15,071.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,417.67 : 26,796.13 = 10,921.20 : x
  2. Step 2: Convert to fraction form
    19,417.67/26,796.13 = 10,921.20/x
  3. Step 3: Cross multiply
    19,417.67x = 26,796.13 × 10,921.20
  4. Step 4: Simplify right side
    19,417.67x = 292,645,894.96
  5. Step 5: Solve for x
    x = 292,645,894.96/19,417.67
  6. Step 6: Final answer
    x = 15,071.11

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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.