Home / 15,053.49-20,774.57-9,085.05

Finding the Fourth Proportional to 15,053.49, 20,774.57 and 9,085.05

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Solution

The fourth proportional to 15,053.49, 20,774.57 and 9,085.05 is: 12,537.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,053.49 : 20,774.57 = 9,085.05 : x
  2. Step 2: Convert to fraction form
    15,053.49/20,774.57 = 9,085.05/x
  3. Step 3: Cross multiply
    15,053.49x = 20,774.57 × 9,085.05
  4. Step 4: Simplify right side
    15,053.49x = 188,737,961.75
  5. Step 5: Solve for x
    x = 188,737,961.75/15,053.49
  6. Step 6: Final answer
    x = 12,537.82

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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.