Home / 21,395.53-29,526.63-11,964.07

Finding the Fourth Proportional to 21,395.53, 29,526.63 and 11,964.07

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Solution

The fourth proportional to 21,395.53, 29,526.63 and 11,964.07 is: 16,510.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,395.53 : 29,526.63 = 11,964.07 : x
  2. Step 2: Convert to fraction form
    21,395.53/29,526.63 = 11,964.07/x
  3. Step 3: Cross multiply
    21,395.53x = 29,526.63 × 11,964.07
  4. Step 4: Simplify right side
    21,395.53x = 353,258,520.55
  5. Step 5: Solve for x
    x = 353,258,520.55/21,395.53
  6. Step 6: Final answer
    x = 16,510.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.