Home / 15,603.67-21,534.24-8,889.58

Finding the Fourth Proportional to 15,603.67, 21,534.24 and 8,889.58

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Solution

The fourth proportional to 15,603.67, 21,534.24 and 8,889.58 is: 12,268.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,603.67 : 21,534.24 = 8,889.58 : x
  2. Step 2: Convert to fraction form
    15,603.67/21,534.24 = 8,889.58/x
  3. Step 3: Cross multiply
    15,603.67x = 21,534.24 × 8,889.58
  4. Step 4: Simplify right side
    15,603.67x = 191,430,349.22
  5. Step 5: Solve for x
    x = 191,430,349.22/15,603.67
  6. Step 6: Final answer
    x = 12,268.29

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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.