Home / 14,777.55-20,374.88-9,178.83

Finding the Fourth Proportional to 14,777.55, 20,374.88 and 9,178.83

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Solution

The fourth proportional to 14,777.55, 20,374.88 and 9,178.83 is: 12,655.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,777.55 : 20,374.88 = 9,178.83 : x
  2. Step 2: Convert to fraction form
    14,777.55/20,374.88 = 9,178.83/x
  3. Step 3: Cross multiply
    14,777.55x = 20,374.88 × 9,178.83
  4. Step 4: Simplify right side
    14,777.55x = 187,017,513.90
  5. Step 5: Solve for x
    x = 187,017,513.90/14,777.55
  6. Step 6: Final answer
    x = 12,655.52

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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.