Home / 15,594.09-21,519.85-8,424.01

Finding the Fourth Proportional to 15,594.09, 21,519.85 and 8,424.01

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Solution

The fourth proportional to 15,594.09, 21,519.85 and 8,424.01 is: 11,625.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,594.09 : 21,519.85 = 8,424.01 : x
  2. Step 2: Convert to fraction form
    15,594.09/21,519.85 = 8,424.01/x
  3. Step 3: Cross multiply
    15,594.09x = 21,519.85 × 8,424.01
  4. Step 4: Simplify right side
    15,594.09x = 181,283,302.94
  5. Step 5: Solve for x
    x = 181,283,302.94/15,594.09
  6. Step 6: Final answer
    x = 11,625.13

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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.