Home / 14,345.75-21,518.63-3,957.50

Finding the Fourth Proportional to 14,345.75, 21,518.63 and 3,957.50

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Solution

The fourth proportional to 14,345.75, 21,518.63 and 3,957.50 is: 5,936.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,345.75 : 21,518.63 = 3,957.50 : x
  2. Step 2: Convert to fraction form
    14,345.75/21,518.63 = 3,957.50/x
  3. Step 3: Cross multiply
    14,345.75x = 21,518.63 × 3,957.50
  4. Step 4: Simplify right side
    14,345.75x = 85,159,978.23
  5. Step 5: Solve for x
    x = 85,159,978.23/14,345.75
  6. Step 6: Final answer
    x = 5,936.25

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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.