Home / 14,155.63-21,218.86-7,580.05

Finding the Fourth Proportional to 14,155.63, 21,218.86 and 7,580.05

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Solution

The fourth proportional to 14,155.63, 21,218.86 and 7,580.05 is: 11,362.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,155.63 : 21,218.86 = 7,580.05 : x
  2. Step 2: Convert to fraction form
    14,155.63/21,218.86 = 7,580.05/x
  3. Step 3: Cross multiply
    14,155.63x = 21,218.86 × 7,580.05
  4. Step 4: Simplify right side
    14,155.63x = 160,839,976.17
  5. Step 5: Solve for x
    x = 160,839,976.17/14,155.63
  6. Step 6: Final answer
    x = 11,362.26

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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.