Home / 8,775.40-13,145.76-5,075.32

Finding the Fourth Proportional to 8,775.40, 13,145.76 and 5,075.32

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Solution

The fourth proportional to 8,775.40, 13,145.76 and 5,075.32 is: 7,602.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,775.40 : 13,145.76 = 5,075.32 : x
  2. Step 2: Convert to fraction form
    8,775.40/13,145.76 = 5,075.32/x
  3. Step 3: Cross multiply
    8,775.40x = 13,145.76 × 5,075.32
  4. Step 4: Simplify right side
    8,775.40x = 66,718,938.64
  5. Step 5: Solve for x
    x = 66,718,938.64/8,775.40
  6. Step 6: Final answer
    x = 7,602.95

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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.