Home / 15,852.02-21,876.08-9,136.51

Finding the Fourth Proportional to 15,852.02, 21,876.08 and 9,136.51

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Solution

The fourth proportional to 15,852.02, 21,876.08 and 9,136.51 is: 12,608.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,852.02 : 21,876.08 = 9,136.51 : x
  2. Step 2: Convert to fraction form
    15,852.02/21,876.08 = 9,136.51/x
  3. Step 3: Cross multiply
    15,852.02x = 21,876.08 × 9,136.51
  4. Step 4: Simplify right side
    15,852.02x = 199,870,923.31
  5. Step 5: Solve for x
    x = 199,870,923.31/15,852.02
  6. Step 6: Final answer
    x = 12,608.55

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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.