Home / 12,606.42-18,909.63-12,588.20

Finding the Fourth Proportional to 12,606.42, 18,909.63 and 12,588.20

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Solution

The fourth proportional to 12,606.42, 18,909.63 and 12,588.20 is: 18,882.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,606.42 : 18,909.63 = 12,588.20 : x
  2. Step 2: Convert to fraction form
    12,606.42/18,909.63 = 12,588.20/x
  3. Step 3: Cross multiply
    12,606.42x = 18,909.63 × 12,588.20
  4. Step 4: Simplify right side
    12,606.42x = 238,038,204.37
  5. Step 5: Solve for x
    x = 238,038,204.37/12,606.42
  6. Step 6: Final answer
    x = 18,882.30

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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.