Home / 13,134.36-19,574.14-12,714.07

Finding the Fourth Proportional to 13,134.36, 19,574.14 and 12,714.07

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Solution

The fourth proportional to 13,134.36, 19,574.14 and 12,714.07 is: 18,947.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,134.36 : 19,574.14 = 12,714.07 : x
  2. Step 2: Convert to fraction form
    13,134.36/19,574.14 = 12,714.07/x
  3. Step 3: Cross multiply
    13,134.36x = 19,574.14 × 12,714.07
  4. Step 4: Simplify right side
    13,134.36x = 248,866,905.43
  5. Step 5: Solve for x
    x = 248,866,905.43/13,134.36
  6. Step 6: Final answer
    x = 18,947.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.