Home / 14,977.98-20,671.20-9,316.35

Finding the Fourth Proportional to 14,977.98, 20,671.20 and 9,316.35

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Solution

The fourth proportional to 14,977.98, 20,671.20 and 9,316.35 is: 12,857.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,977.98 : 20,671.20 = 9,316.35 : x
  2. Step 2: Convert to fraction form
    14,977.98/20,671.20 = 9,316.35/x
  3. Step 3: Cross multiply
    14,977.98x = 20,671.20 × 9,316.35
  4. Step 4: Simplify right side
    14,977.98x = 192,580,134.12
  5. Step 5: Solve for x
    x = 192,580,134.12/14,977.98
  6. Step 6: Final answer
    x = 12,857.55

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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.