Home / 19,018.71-26,236.97-12,306.50

Finding the Fourth Proportional to 19,018.71, 26,236.97 and 12,306.50

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Solution

The fourth proportional to 19,018.71, 26,236.97 and 12,306.50 is: 16,977.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,018.71 : 26,236.97 = 12,306.50 : x
  2. Step 2: Convert to fraction form
    19,018.71/26,236.97 = 12,306.50/x
  3. Step 3: Cross multiply
    19,018.71x = 26,236.97 × 12,306.50
  4. Step 4: Simplify right side
    19,018.71x = 322,885,271.31
  5. Step 5: Solve for x
    x = 322,885,271.31/19,018.71
  6. Step 6: Final answer
    x = 16,977.24

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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.