Home / 10,946.43-15,108.32-7,122.84

Finding the Fourth Proportional to 10,946.43, 15,108.32 and 7,122.84

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Solution

The fourth proportional to 10,946.43, 15,108.32 and 7,122.84 is: 9,830.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,946.43 : 15,108.32 = 7,122.84 : x
  2. Step 2: Convert to fraction form
    10,946.43/15,108.32 = 7,122.84/x
  3. Step 3: Cross multiply
    10,946.43x = 15,108.32 × 7,122.84
  4. Step 4: Simplify right side
    10,946.43x = 107,614,107.18
  5. Step 5: Solve for x
    x = 107,614,107.18/10,946.43
  6. Step 6: Final answer
    x = 9,830.98

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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.