Home / 14,007.57-21,009.69-5,240.13

Finding the Fourth Proportional to 14,007.57, 21,009.69 and 5,240.13

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Solution

The fourth proportional to 14,007.57, 21,009.69 and 5,240.13 is: 7,859.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,007.57 : 21,009.69 = 5,240.13 : x
  2. Step 2: Convert to fraction form
    14,007.57/21,009.69 = 5,240.13/x
  3. Step 3: Cross multiply
    14,007.57x = 21,009.69 × 5,240.13
  4. Step 4: Simplify right side
    14,007.57x = 110,093,506.86
  5. Step 5: Solve for x
    x = 110,093,506.86/14,007.57
  6. Step 6: Final answer
    x = 7,859.57

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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.