Home / 14,721.93-20,285.51-9,998.01

Finding the Fourth Proportional to 14,721.93, 20,285.51 and 9,998.01

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Solution

The fourth proportional to 14,721.93, 20,285.51 and 9,998.01 is: 13,776.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,721.93 : 20,285.51 = 9,998.01 : x
  2. Step 2: Convert to fraction form
    14,721.93/20,285.51 = 9,998.01/x
  3. Step 3: Cross multiply
    14,721.93x = 20,285.51 × 9,998.01
  4. Step 4: Simplify right side
    14,721.93x = 202,814,681.85
  5. Step 5: Solve for x
    x = 202,814,681.85/14,721.93
  6. Step 6: Final answer
    x = 13,776.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.