Home / 10,294.09-14,205.85-5,578.40

Finding the Fourth Proportional to 10,294.09, 14,205.85 and 5,578.40

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Solution

The fourth proportional to 10,294.09, 14,205.85 and 5,578.40 is: 7,698.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,294.09 : 14,205.85 = 5,578.40 : x
  2. Step 2: Convert to fraction form
    10,294.09/14,205.85 = 5,578.40/x
  3. Step 3: Cross multiply
    10,294.09x = 14,205.85 × 5,578.40
  4. Step 4: Simplify right side
    10,294.09x = 79,245,935.21
  5. Step 5: Solve for x
    x = 79,245,935.21/10,294.09
  6. Step 6: Final answer
    x = 7,698.20

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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.