Home / 14,288.68-21,415.74-7,359.40

Finding the Fourth Proportional to 14,288.68, 21,415.74 and 7,359.40

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Solution

The fourth proportional to 14,288.68, 21,415.74 and 7,359.40 is: 11,030.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,288.68 : 21,415.74 = 7,359.40 : x
  2. Step 2: Convert to fraction form
    14,288.68/21,415.74 = 7,359.40/x
  3. Step 3: Cross multiply
    14,288.68x = 21,415.74 × 7,359.40
  4. Step 4: Simplify right side
    14,288.68x = 157,606,996.96
  5. Step 5: Solve for x
    x = 157,606,996.96/14,288.68
  6. Step 6: Final answer
    x = 11,030.20

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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.