Home / 12,302.24-16,972.08-8,578.40

Finding the Fourth Proportional to 12,302.24, 16,972.08 and 8,578.40

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Solution

The fourth proportional to 12,302.24, 16,972.08 and 8,578.40 is: 11,834.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,302.24 : 16,972.08 = 8,578.40 : x
  2. Step 2: Convert to fraction form
    12,302.24/16,972.08 = 8,578.40/x
  3. Step 3: Cross multiply
    12,302.24x = 16,972.08 × 8,578.40
  4. Step 4: Simplify right side
    12,302.24x = 145,593,291.07
  5. Step 5: Solve for x
    x = 145,593,291.07/12,302.24
  6. Step 6: Final answer
    x = 11,834.70

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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.