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Finding the Fourth Proportional to 12,750.48, 17,595.08 and 7,085.60

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Solution

The fourth proportional to 12,750.48, 17,595.08 and 7,085.60 is: 9,777.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,750.48 : 17,595.08 = 7,085.60 : x
  2. Step 2: Convert to fraction form
    12,750.48/17,595.08 = 7,085.60/x
  3. Step 3: Cross multiply
    12,750.48x = 17,595.08 × 7,085.60
  4. Step 4: Simplify right side
    12,750.48x = 124,671,698.85
  5. Step 5: Solve for x
    x = 124,671,698.85/12,750.48
  6. Step 6: Final answer
    x = 9,777.80

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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.