Home / 8,851.68-12,215.64-5,075.56

Finding the Fourth Proportional to 8,851.68, 12,215.64 and 5,075.56

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Solution

The fourth proportional to 8,851.68, 12,215.64 and 5,075.56 is: 7,004.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,851.68 : 12,215.64 = 5,075.56 : x
  2. Step 2: Convert to fraction form
    8,851.68/12,215.64 = 5,075.56/x
  3. Step 3: Cross multiply
    8,851.68x = 12,215.64 × 5,075.56
  4. Step 4: Simplify right side
    8,851.68x = 62,001,248.06
  5. Step 5: Solve for x
    x = 62,001,248.06/8,851.68
  6. Step 6: Final answer
    x = 7,004.46

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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.