Home / 19,018.47-26,236.65-12,306.27

Finding the Fourth Proportional to 19,018.47, 26,236.65 and 12,306.27

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Solution

The fourth proportional to 19,018.47, 26,236.65 and 12,306.27 is: 16,976.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,018.47 : 26,236.65 = 12,306.27 : x
  2. Step 2: Convert to fraction form
    19,018.47/26,236.65 = 12,306.27/x
  3. Step 3: Cross multiply
    19,018.47x = 26,236.65 × 12,306.27
  4. Step 4: Simplify right side
    19,018.47x = 322,875,261.14
  5. Step 5: Solve for x
    x = 322,875,261.14/19,018.47
  6. Step 6: Final answer
    x = 16,976.93

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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.