Home / 15,354.78-23,075.52-9,115.98

Finding the Fourth Proportional to 15,354.78, 23,075.52 and 9,115.98

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Solution

The fourth proportional to 15,354.78, 23,075.52 and 9,115.98 is: 13,699.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,354.78 : 23,075.52 = 9,115.98 : x
  2. Step 2: Convert to fraction form
    15,354.78/23,075.52 = 9,115.98/x
  3. Step 3: Cross multiply
    15,354.78x = 23,075.52 × 9,115.98
  4. Step 4: Simplify right side
    15,354.78x = 210,355,978.81
  5. Step 5: Solve for x
    x = 210,355,978.81/15,354.78
  6. Step 6: Final answer
    x = 13,699.71

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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.