Home / 14,139.04-21,194.72-7,902.08

Finding the Fourth Proportional to 14,139.04, 21,194.72 and 7,902.08

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Solution

The fourth proportional to 14,139.04, 21,194.72 and 7,902.08 is: 11,845.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,139.04 : 21,194.72 = 7,902.08 : x
  2. Step 2: Convert to fraction form
    14,139.04/21,194.72 = 7,902.08/x
  3. Step 3: Cross multiply
    14,139.04x = 21,194.72 × 7,902.08
  4. Step 4: Simplify right side
    14,139.04x = 167,482,373.02
  5. Step 5: Solve for x
    x = 167,482,373.02/14,139.04
  6. Step 6: Final answer
    x = 11,845.39

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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.