Home / 15,254.77-21,050.61-8,539.27

Finding the Fourth Proportional to 15,254.77, 21,050.61 and 8,539.27

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Solution

The fourth proportional to 15,254.77, 21,050.61 and 8,539.27 is: 11,783.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,254.77 : 21,050.61 = 8,539.27 : x
  2. Step 2: Convert to fraction form
    15,254.77/21,050.61 = 8,539.27/x
  3. Step 3: Cross multiply
    15,254.77x = 21,050.61 × 8,539.27
  4. Step 4: Simplify right side
    15,254.77x = 179,756,842.45
  5. Step 5: Solve for x
    x = 179,756,842.45/15,254.77
  6. Step 6: Final answer
    x = 11,783.65

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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.