Home / 15,525.11-21,424.01-8,810.60

Finding the Fourth Proportional to 15,525.11, 21,424.01 and 8,810.60

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Solution

The fourth proportional to 15,525.11, 21,424.01 and 8,810.60 is: 12,158.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,525.11 : 21,424.01 = 8,810.60 : x
  2. Step 2: Convert to fraction form
    15,525.11/21,424.01 = 8,810.60/x
  3. Step 3: Cross multiply
    15,525.11x = 21,424.01 × 8,810.60
  4. Step 4: Simplify right side
    15,525.11x = 188,758,382.51
  5. Step 5: Solve for x
    x = 188,758,382.51/15,525.11
  6. Step 6: Final answer
    x = 12,158.26

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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.