Home / 12,280.48-16,947.10-6,975.34

Finding the Fourth Proportional to 12,280.48, 16,947.10 and 6,975.34

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Solution

The fourth proportional to 12,280.48, 16,947.10 and 6,975.34 is: 9,625.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,280.48 : 16,947.10 = 6,975.34 : x
  2. Step 2: Convert to fraction form
    12,280.48/16,947.10 = 6,975.34/x
  3. Step 3: Cross multiply
    12,280.48x = 16,947.10 × 6,975.34
  4. Step 4: Simplify right side
    12,280.48x = 118,211,784.51
  5. Step 5: Solve for x
    x = 118,211,784.51/12,280.48
  6. Step 6: Final answer
    x = 9,625.99

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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.