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Finding the Fourth Proportional to 17,075.78, 25,607.52 and 7,215.83

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Solution

The fourth proportional to 17,075.78, 25,607.52 and 7,215.83 is: 10,821.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,075.78 : 25,607.52 = 7,215.83 : x
  2. Step 2: Convert to fraction form
    17,075.78/25,607.52 = 7,215.83/x
  3. Step 3: Cross multiply
    17,075.78x = 25,607.52 × 7,215.83
  4. Step 4: Simplify right side
    17,075.78x = 184,779,511.04
  5. Step 5: Solve for x
    x = 184,779,511.04/17,075.78
  6. Step 6: Final answer
    x = 10,821.14

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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.