Home / 12,902.71-19,266.70-10,240.35

Finding the Fourth Proportional to 12,902.71, 19,266.70 and 10,240.35

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Solution

The fourth proportional to 12,902.71, 19,266.70 and 10,240.35 is: 15,291.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,902.71 : 19,266.70 = 10,240.35 : x
  2. Step 2: Convert to fraction form
    12,902.71/19,266.70 = 10,240.35/x
  3. Step 3: Cross multiply
    12,902.71x = 19,266.70 × 10,240.35
  4. Step 4: Simplify right side
    12,902.71x = 197,297,776.95
  5. Step 5: Solve for x
    x = 197,297,776.95/12,902.71
  6. Step 6: Final answer
    x = 15,291.19

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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.