Home / 14,133.36-21,206.52-7,212.72

Finding the Fourth Proportional to 14,133.36, 21,206.52 and 7,212.72

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Solution

The fourth proportional to 14,133.36, 21,206.52 and 7,212.72 is: 10,822.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,133.36 : 21,206.52 = 7,212.72 : x
  2. Step 2: Convert to fraction form
    14,133.36/21,206.52 = 7,212.72/x
  3. Step 3: Cross multiply
    14,133.36x = 21,206.52 × 7,212.72
  4. Step 4: Simplify right side
    14,133.36x = 152,956,690.93
  5. Step 5: Solve for x
    x = 152,956,690.93/14,133.36
  6. Step 6: Final answer
    x = 10,822.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.