Home / 21,395.52-29,526.30-11,964.06

Finding the Fourth Proportional to 21,395.52, 29,526.30 and 11,964.06

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Solution

The fourth proportional to 21,395.52, 29,526.30 and 11,964.06 is: 16,510.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,395.52 : 29,526.30 = 11,964.06 : x
  2. Step 2: Convert to fraction form
    21,395.52/29,526.30 = 11,964.06/x
  3. Step 3: Cross multiply
    21,395.52x = 29,526.30 × 11,964.06
  4. Step 4: Simplify right side
    21,395.52x = 353,254,424.78
  5. Step 5: Solve for x
    x = 353,254,424.78/21,395.52
  6. Step 6: Final answer
    x = 16,510.67

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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.