Home / 14,655.12-20,215.08-11,970.24

Finding the Fourth Proportional to 14,655.12, 20,215.08 and 11,970.24

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Solution

The fourth proportional to 14,655.12, 20,215.08 and 11,970.24 is: 16,511.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,655.12 : 20,215.08 = 11,970.24 : x
  2. Step 2: Convert to fraction form
    14,655.12/20,215.08 = 11,970.24/x
  3. Step 3: Cross multiply
    14,655.12x = 20,215.08 × 11,970.24
  4. Step 4: Simplify right side
    14,655.12x = 241,979,359.22
  5. Step 5: Solve for x
    x = 241,979,359.22/14,655.12
  6. Step 6: Final answer
    x = 16,511.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.