Home / 14,112.36-21,079.15-13,302.65

Finding the Fourth Proportional to 14,112.36, 21,079.15 and 13,302.65

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Solution

The fourth proportional to 14,112.36, 21,079.15 and 13,302.65 is: 19,869.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,112.36 : 21,079.15 = 13,302.65 : x
  2. Step 2: Convert to fraction form
    14,112.36/21,079.15 = 13,302.65/x
  3. Step 3: Cross multiply
    14,112.36x = 21,079.15 × 13,302.65
  4. Step 4: Simplify right side
    14,112.36x = 280,408,574.19
  5. Step 5: Solve for x
    x = 280,408,574.19/14,112.36
  6. Step 6: Final answer
    x = 19,869.72

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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.