Home / 14,669.36-21,988.80-7,269.20

Finding the Fourth Proportional to 14,669.36, 21,988.80 and 7,269.20

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Solution

The fourth proportional to 14,669.36, 21,988.80 and 7,269.20 is: 10,896.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,669.36 : 21,988.80 = 7,269.20 : x
  2. Step 2: Convert to fraction form
    14,669.36/21,988.80 = 7,269.20/x
  3. Step 3: Cross multiply
    14,669.36x = 21,988.80 × 7,269.20
  4. Step 4: Simplify right side
    14,669.36x = 159,840,984.96
  5. Step 5: Solve for x
    x = 159,840,984.96/14,669.36
  6. Step 6: Final answer
    x = 10,896.25

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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.