Home / 14,009.55-21,014.75-5,242.78

Finding the Fourth Proportional to 14,009.55, 21,014.75 and 5,242.78

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Solution

The fourth proportional to 14,009.55, 21,014.75 and 5,242.78 is: 7,864.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,009.55 : 21,014.75 = 5,242.78 : x
  2. Step 2: Convert to fraction form
    14,009.55/21,014.75 = 5,242.78/x
  3. Step 3: Cross multiply
    14,009.55x = 21,014.75 × 5,242.78
  4. Step 4: Simplify right side
    14,009.55x = 110,175,711.01
  5. Step 5: Solve for x
    x = 110,175,711.01/14,009.55
  6. Step 6: Final answer
    x = 7,864.33

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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.