Home / 13,957.72-19,260.65-7,989.30

Finding the Fourth Proportional to 13,957.72, 19,260.65 and 7,989.30

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Solution

The fourth proportional to 13,957.72, 19,260.65 and 7,989.30 is: 11,024.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,957.72 : 19,260.65 = 7,989.30 : x
  2. Step 2: Convert to fraction form
    13,957.72/19,260.65 = 7,989.30/x
  3. Step 3: Cross multiply
    13,957.72x = 19,260.65 × 7,989.30
  4. Step 4: Simplify right side
    13,957.72x = 153,879,131.02
  5. Step 5: Solve for x
    x = 153,879,131.02/13,957.72
  6. Step 6: Final answer
    x = 11,024.66

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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.