Home / 14,153.79-21,223.39-5,265.45

Finding the Fourth Proportional to 14,153.79, 21,223.39 and 5,265.45

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Solution

The fourth proportional to 14,153.79, 21,223.39 and 5,265.45 is: 7,895.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,153.79 : 21,223.39 = 5,265.45 : x
  2. Step 2: Convert to fraction form
    14,153.79/21,223.39 = 5,265.45/x
  3. Step 3: Cross multiply
    14,153.79x = 21,223.39 × 5,265.45
  4. Step 4: Simplify right side
    14,153.79x = 111,750,738.77
  5. Step 5: Solve for x
    x = 111,750,738.77/14,153.79
  6. Step 6: Final answer
    x = 7,895.47

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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.