Home / 12,312.35-18,457.57-4,519.34

Finding the Fourth Proportional to 12,312.35, 18,457.57 and 4,519.34

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Solution

The fourth proportional to 12,312.35, 18,457.57 and 4,519.34 is: 6,774.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,312.35 : 18,457.57 = 4,519.34 : x
  2. Step 2: Convert to fraction form
    12,312.35/18,457.57 = 4,519.34/x
  3. Step 3: Cross multiply
    12,312.35x = 18,457.57 × 4,519.34
  4. Step 4: Simplify right side
    12,312.35x = 83,415,919.52
  5. Step 5: Solve for x
    x = 83,415,919.52/12,312.35
  6. Step 6: Final answer
    x = 6,774.98

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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.