Home / 12,426.24-18,622.80-10,862.40

Finding the Fourth Proportional to 12,426.24, 18,622.80 and 10,862.40

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Solution

The fourth proportional to 12,426.24, 18,622.80 and 10,862.40 is: 16,279.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,426.24 : 18,622.80 = 10,862.40 : x
  2. Step 2: Convert to fraction form
    12,426.24/18,622.80 = 10,862.40/x
  3. Step 3: Cross multiply
    12,426.24x = 18,622.80 × 10,862.40
  4. Step 4: Simplify right side
    12,426.24x = 202,288,302.72
  5. Step 5: Solve for x
    x = 202,288,302.72/12,426.24
  6. Step 6: Final answer
    x = 16,279.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.