Home / 14,782.55-20,400.35-8,068.61

Finding the Fourth Proportional to 14,782.55, 20,400.35 and 8,068.61

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Solution

The fourth proportional to 14,782.55, 20,400.35 and 8,068.61 is: 11,134.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,782.55 : 20,400.35 = 8,068.61 : x
  2. Step 2: Convert to fraction form
    14,782.55/20,400.35 = 8,068.61/x
  3. Step 3: Cross multiply
    14,782.55x = 20,400.35 × 8,068.61
  4. Step 4: Simplify right side
    14,782.55x = 164,602,468.01
  5. Step 5: Solve for x
    x = 164,602,468.01/14,782.55
  6. Step 6: Final answer
    x = 11,134.92

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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.