Home / 12,038.34-18,055.84-3,718.63

Finding the Fourth Proportional to 12,038.34, 18,055.84 and 3,718.63

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Solution

The fourth proportional to 12,038.34, 18,055.84 and 3,718.63 is: 5,577.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,038.34 : 18,055.84 = 3,718.63 : x
  2. Step 2: Convert to fraction form
    12,038.34/18,055.84 = 3,718.63/x
  3. Step 3: Cross multiply
    12,038.34x = 18,055.84 × 3,718.63
  4. Step 4: Simplify right side
    12,038.34x = 67,142,988.30
  5. Step 5: Solve for x
    x = 67,142,988.30/12,038.34
  6. Step 6: Final answer
    x = 5,577.43

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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.