Home / 15,614.98-21,555.71-9,957.32

Finding the Fourth Proportional to 15,614.98, 21,555.71 and 9,957.32

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Solution

The fourth proportional to 15,614.98, 21,555.71 and 9,957.32 is: 13,745.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,614.98 : 21,555.71 = 9,957.32 : x
  2. Step 2: Convert to fraction form
    15,614.98/21,555.71 = 9,957.32/x
  3. Step 3: Cross multiply
    15,614.98x = 21,555.71 × 9,957.32
  4. Step 4: Simplify right side
    15,614.98x = 214,637,102.30
  5. Step 5: Solve for x
    x = 214,637,102.30/15,614.98
  6. Step 6: Final answer
    x = 13,745.59

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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.