Home / 15,629.84-21,566.28-9,340.88

Finding the Fourth Proportional to 15,629.84, 21,566.28 and 9,340.88

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Solution

The fourth proportional to 15,629.84, 21,566.28 and 9,340.88 is: 12,888.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,629.84 : 21,566.28 = 9,340.88 : x
  2. Step 2: Convert to fraction form
    15,629.84/21,566.28 = 9,340.88/x
  3. Step 3: Cross multiply
    15,629.84x = 21,566.28 × 9,340.88
  4. Step 4: Simplify right side
    15,629.84x = 201,448,033.53
  5. Step 5: Solve for x
    x = 201,448,033.53/15,629.84
  6. Step 6: Final answer
    x = 12,888.68

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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.