Home / 14,160.06-21,217.95-8,955

Finding the Fourth Proportional to 14,160.06, 21,217.95 and 8,955

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Solution

The fourth proportional to 14,160.06, 21,217.95 and 8,955 is: 13,418.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,160.06 : 21,217.95 = 8,955 : x
  2. Step 2: Convert to fraction form
    14,160.06/21,217.95 = 8,955/x
  3. Step 3: Cross multiply
    14,160.06x = 21,217.95 × 8,955
  4. Step 4: Simplify right side
    14,160.06x = 190,006,742.25
  5. Step 5: Solve for x
    x = 190,006,742.25/14,160.06
  6. Step 6: Final answer
    x = 13,418.50

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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.