Home / 12,397.29-18,506.76-10,623.20

Finding the Fourth Proportional to 12,397.29, 18,506.76 and 10,623.20

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Solution

The fourth proportional to 12,397.29, 18,506.76 and 10,623.20 is: 15,858.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,397.29 : 18,506.76 = 10,623.20 : x
  2. Step 2: Convert to fraction form
    12,397.29/18,506.76 = 10,623.20/x
  3. Step 3: Cross multiply
    12,397.29x = 18,506.76 × 10,623.20
  4. Step 4: Simplify right side
    12,397.29x = 196,600,920.30
  5. Step 5: Solve for x
    x = 196,600,920.30/12,397.29
  6. Step 6: Final answer
    x = 15,858.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.