Home / 12,903.24-19,328.94-7,706.28

Finding the Fourth Proportional to 12,903.24, 19,328.94 and 7,706.28

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Solution

The fourth proportional to 12,903.24, 19,328.94 and 7,706.28 is: 11,543.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,903.24 : 19,328.94 = 7,706.28 : x
  2. Step 2: Convert to fraction form
    12,903.24/19,328.94 = 7,706.28/x
  3. Step 3: Cross multiply
    12,903.24x = 19,328.94 × 7,706.28
  4. Step 4: Simplify right side
    12,903.24x = 148,954,223.74
  5. Step 5: Solve for x
    x = 148,954,223.74/12,903.24
  6. Step 6: Final answer
    x = 11,543.94

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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.