Home / 14,052.15-21,075.80-5,287.14

Finding the Fourth Proportional to 14,052.15, 21,075.80 and 5,287.14

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Solution

The fourth proportional to 14,052.15, 21,075.80 and 5,287.14 is: 7,929.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,052.15 : 21,075.80 = 5,287.14 : x
  2. Step 2: Convert to fraction form
    14,052.15/21,075.80 = 5,287.14/x
  3. Step 3: Cross multiply
    14,052.15x = 21,075.80 × 5,287.14
  4. Step 4: Simplify right side
    14,052.15x = 111,430,678.78
  5. Step 5: Solve for x
    x = 111,430,678.78/14,052.15
  6. Step 6: Final answer
    x = 7,929.80

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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.