Home / 14,147.04-21,206.72-7,910.08

Finding the Fourth Proportional to 14,147.04, 21,206.72 and 7,910.08

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Solution

The fourth proportional to 14,147.04, 21,206.72 and 7,910.08 is: 11,857.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,147.04 : 21,206.72 = 7,910.08 : x
  2. Step 2: Convert to fraction form
    14,147.04/21,206.72 = 7,910.08/x
  3. Step 3: Cross multiply
    14,147.04x = 21,206.72 × 7,910.08
  4. Step 4: Simplify right side
    14,147.04x = 167,746,851.74
  5. Step 5: Solve for x
    x = 167,746,851.74/14,147.04
  6. Step 6: Final answer
    x = 11,857.38

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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.