Home / 12,274.49-16,945.21-9,579.93

Finding the Fourth Proportional to 12,274.49, 16,945.21 and 9,579.93

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Solution

The fourth proportional to 12,274.49, 16,945.21 and 9,579.93 is: 13,225.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,274.49 : 16,945.21 = 9,579.93 : x
  2. Step 2: Convert to fraction form
    12,274.49/16,945.21 = 9,579.93/x
  3. Step 3: Cross multiply
    12,274.49x = 16,945.21 × 9,579.93
  4. Step 4: Simplify right side
    12,274.49x = 162,333,925.64
  5. Step 5: Solve for x
    x = 162,333,925.64/12,274.49
  6. Step 6: Final answer
    x = 13,225.31

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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.