Home / 15,532.90-21,435.37-8,459.37

Finding the Fourth Proportional to 15,532.90, 21,435.37 and 8,459.37

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Solution

The fourth proportional to 15,532.90, 21,435.37 and 8,459.37 is: 11,673.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,532.90 : 21,435.37 = 8,459.37 : x
  2. Step 2: Convert to fraction form
    15,532.90/21,435.37 = 8,459.37/x
  3. Step 3: Cross multiply
    15,532.90x = 21,435.37 × 8,459.37
  4. Step 4: Simplify right side
    15,532.90x = 181,329,704.77
  5. Step 5: Solve for x
    x = 181,329,704.77/15,532.90
  6. Step 6: Final answer
    x = 11,673.91

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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.