Home / 14,045.36-21,052.92-7,120.40

Finding the Fourth Proportional to 14,045.36, 21,052.92 and 7,120.40

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Solution

The fourth proportional to 14,045.36, 21,052.92 and 7,120.40 is: 10,672.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,045.36 : 21,052.92 = 7,120.40 : x
  2. Step 2: Convert to fraction form
    14,045.36/21,052.92 = 7,120.40/x
  3. Step 3: Cross multiply
    14,045.36x = 21,052.92 × 7,120.40
  4. Step 4: Simplify right side
    14,045.36x = 149,905,211.57
  5. Step 5: Solve for x
    x = 149,905,211.57/14,045.36
  6. Step 6: Final answer
    x = 10,672.93

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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.