Home / 14,075.20-19,425.06-7,788.76

Finding the Fourth Proportional to 14,075.20, 19,425.06 and 7,788.76

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Solution

The fourth proportional to 14,075.20, 19,425.06 and 7,788.76 is: 10,749.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,075.20 : 19,425.06 = 7,788.76 : x
  2. Step 2: Convert to fraction form
    14,075.20/19,425.06 = 7,788.76/x
  3. Step 3: Cross multiply
    14,075.20x = 19,425.06 × 7,788.76
  4. Step 4: Simplify right side
    14,075.20x = 151,297,130.33
  5. Step 5: Solve for x
    x = 151,297,130.33/14,075.20
  6. Step 6: Final answer
    x = 10,749.20

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.