Home / 14,127.30-21,200.16-10,438.76

Finding the Fourth Proportional to 14,127.30, 21,200.16 and 10,438.76

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Solution

The fourth proportional to 14,127.30, 21,200.16 and 10,438.76 is: 15,664.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,127.30 : 21,200.16 = 10,438.76 : x
  2. Step 2: Convert to fraction form
    14,127.30/21,200.16 = 10,438.76/x
  3. Step 3: Cross multiply
    14,127.30x = 21,200.16 × 10,438.76
  4. Step 4: Simplify right side
    14,127.30x = 221,303,276.20
  5. Step 5: Solve for x
    x = 221,303,276.20/14,127.30
  6. Step 6: Final answer
    x = 15,664.94

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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.