Home / 14,485.80-21,777.30-12,347.40

Finding the Fourth Proportional to 14,485.80, 21,777.30 and 12,347.40

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Solution

The fourth proportional to 14,485.80, 21,777.30 and 12,347.40 is: 18,562.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,485.80 : 21,777.30 = 12,347.40 : x
  2. Step 2: Convert to fraction form
    14,485.80/21,777.30 = 12,347.40/x
  3. Step 3: Cross multiply
    14,485.80x = 21,777.30 × 12,347.40
  4. Step 4: Simplify right side
    14,485.80x = 268,893,034.02
  5. Step 5: Solve for x
    x = 268,893,034.02/14,485.80
  6. Step 6: Final answer
    x = 18,562.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.