Home / 15,835.77-21,853.40-8,762.45

Finding the Fourth Proportional to 15,835.77, 21,853.40 and 8,762.45

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Solution

The fourth proportional to 15,835.77, 21,853.40 and 8,762.45 is: 12,092.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,835.77 : 21,853.40 = 8,762.45 : x
  2. Step 2: Convert to fraction form
    15,835.77/21,853.40 = 8,762.45/x
  3. Step 3: Cross multiply
    15,835.77x = 21,853.40 × 8,762.45
  4. Step 4: Simplify right side
    15,835.77x = 191,489,171.75
  5. Step 5: Solve for x
    x = 191,489,171.75/15,835.77
  6. Step 6: Final answer
    x = 12,092.19

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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.