Home / 12,285.19-16,953.55-6,980.01

Finding the Fourth Proportional to 12,285.19, 16,953.55 and 6,980.01

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Solution

The fourth proportional to 12,285.19, 16,953.55 and 6,980.01 is: 9,632.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,285.19 : 16,953.55 = 6,980.01 : x
  2. Step 2: Convert to fraction form
    12,285.19/16,953.55 = 6,980.01/x
  3. Step 3: Cross multiply
    12,285.19x = 16,953.55 × 6,980.01
  4. Step 4: Simplify right side
    12,285.19x = 118,335,906.77
  5. Step 5: Solve for x
    x = 118,335,906.77/12,285.19
  6. Step 6: Final answer
    x = 9,632.41

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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.