Home / 14,009.36-21,013.63-4,148.82

Finding the Fourth Proportional to 14,009.36, 21,013.63 and 4,148.82

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Solution

The fourth proportional to 14,009.36, 21,013.63 and 4,148.82 is: 6,223.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,009.36 : 21,013.63 = 4,148.82 : x
  2. Step 2: Convert to fraction form
    14,009.36/21,013.63 = 4,148.82/x
  3. Step 3: Cross multiply
    14,009.36x = 21,013.63 × 4,148.82
  4. Step 4: Simplify right side
    14,009.36x = 87,181,758.04
  5. Step 5: Solve for x
    x = 87,181,758.04/14,009.36
  6. Step 6: Final answer
    x = 6,223.11

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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.