Home / 12,970.10-19,457.55-4,205.30

Finding the Fourth Proportional to 12,970.10, 19,457.55 and 4,205.30

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Solution

The fourth proportional to 12,970.10, 19,457.55 and 4,205.30 is: 6,308.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,970.10 : 19,457.55 = 4,205.30 : x
  2. Step 2: Convert to fraction form
    12,970.10/19,457.55 = 4,205.30/x
  3. Step 3: Cross multiply
    12,970.10x = 19,457.55 × 4,205.30
  4. Step 4: Simplify right side
    12,970.10x = 81,824,835.02
  5. Step 5: Solve for x
    x = 81,824,835.02/12,970.10
  6. Step 6: Final answer
    x = 6,308.73

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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.