Home / 15,254.16-21,050.74-8,539.80

Finding the Fourth Proportional to 15,254.16, 21,050.74 and 8,539.80

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Solution

The fourth proportional to 15,254.16, 21,050.74 and 8,539.80 is: 11,784.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,254.16 : 21,050.74 = 8,539.80 : x
  2. Step 2: Convert to fraction form
    15,254.16/21,050.74 = 8,539.80/x
  3. Step 3: Cross multiply
    15,254.16x = 21,050.74 × 8,539.80
  4. Step 4: Simplify right side
    15,254.16x = 179,769,004.20
  5. Step 5: Solve for x
    x = 179,769,004.20/15,254.16
  6. Step 6: Final answer
    x = 11,784.92

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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.