Home / 14,215.98-21,296.26-8,655.53

Finding the Fourth Proportional to 14,215.98, 21,296.26 and 8,655.53

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Solution

The fourth proportional to 14,215.98, 21,296.26 and 8,655.53 is: 12,966.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,215.98 : 21,296.26 = 8,655.53 : x
  2. Step 2: Convert to fraction form
    14,215.98/21,296.26 = 8,655.53/x
  3. Step 3: Cross multiply
    14,215.98x = 21,296.26 × 8,655.53
  4. Step 4: Simplify right side
    14,215.98x = 184,330,374.04
  5. Step 5: Solve for x
    x = 184,330,374.04/14,215.98
  6. Step 6: Final answer
    x = 12,966.43

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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.