Home / 14,690.94-20,275.35-9,102.78

Finding the Fourth Proportional to 14,690.94, 20,275.35 and 9,102.78

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Solution

The fourth proportional to 14,690.94, 20,275.35 and 9,102.78 is: 12,562.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,690.94 : 20,275.35 = 9,102.78 : x
  2. Step 2: Convert to fraction form
    14,690.94/20,275.35 = 9,102.78/x
  3. Step 3: Cross multiply
    14,690.94x = 20,275.35 × 9,102.78
  4. Step 4: Simplify right side
    14,690.94x = 184,562,050.47
  5. Step 5: Solve for x
    x = 184,562,050.47/14,690.94
  6. Step 6: Final answer
    x = 12,562.98

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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.