Home / 12,113.90-18,157.80-5,860.70

Finding the Fourth Proportional to 12,113.90, 18,157.80 and 5,860.70

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Solution

The fourth proportional to 12,113.90, 18,157.80 and 5,860.70 is: 8,784.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,113.90 : 18,157.80 = 5,860.70 : x
  2. Step 2: Convert to fraction form
    12,113.90/18,157.80 = 5,860.70/x
  3. Step 3: Cross multiply
    12,113.90x = 18,157.80 × 5,860.70
  4. Step 4: Simplify right side
    12,113.90x = 106,417,418.46
  5. Step 5: Solve for x
    x = 106,417,418.46/12,113.90
  6. Step 6: Final answer
    x = 8,784.74

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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.