Home / 14,223.29-21,307.64-7,964.37

Finding the Fourth Proportional to 14,223.29, 21,307.64 and 7,964.37

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Solution

The fourth proportional to 14,223.29, 21,307.64 and 7,964.37 is: 11,931.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,223.29 : 21,307.64 = 7,964.37 : x
  2. Step 2: Convert to fraction form
    14,223.29/21,307.64 = 7,964.37/x
  3. Step 3: Cross multiply
    14,223.29x = 21,307.64 × 7,964.37
  4. Step 4: Simplify right side
    14,223.29x = 169,701,888.96
  5. Step 5: Solve for x
    x = 169,701,888.96/14,223.29
  6. Step 6: Final answer
    x = 11,931.27

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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.