Home / 14,075.96-19,425.14-7,788.40

Finding the Fourth Proportional to 14,075.96, 19,425.14 and 7,788.40

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Solution

The fourth proportional to 14,075.96, 19,425.14 and 7,788.40 is: 10,748.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,075.96 : 19,425.14 = 7,788.40 : x
  2. Step 2: Convert to fraction form
    14,075.96/19,425.14 = 7,788.40/x
  3. Step 3: Cross multiply
    14,075.96x = 19,425.14 × 7,788.40
  4. Step 4: Simplify right side
    14,075.96x = 151,290,760.38
  5. Step 5: Solve for x
    x = 151,290,760.38/14,075.96
  6. Step 6: Final answer
    x = 10,748.17

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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.