Home / 15,338.45-21,166.49-8,532.45

Finding the Fourth Proportional to 15,338.45, 21,166.49 and 8,532.45

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Solution

The fourth proportional to 15,338.45, 21,166.49 and 8,532.45 is: 11,774.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,338.45 : 21,166.49 = 8,532.45 : x
  2. Step 2: Convert to fraction form
    15,338.45/21,166.49 = 8,532.45/x
  3. Step 3: Cross multiply
    15,338.45x = 21,166.49 × 8,532.45
  4. Step 4: Simplify right side
    15,338.45x = 180,602,038.93
  5. Step 5: Solve for x
    x = 180,602,038.93/15,338.45
  6. Step 6: Final answer
    x = 11,774.46

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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.