Home / 12,389.04-17,092.69-7,080.08

Finding the Fourth Proportional to 12,389.04, 17,092.69 and 7,080.08

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Solution

The fourth proportional to 12,389.04, 17,092.69 and 7,080.08 is: 9,768.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,389.04 : 17,092.69 = 7,080.08 : x
  2. Step 2: Convert to fraction form
    12,389.04/17,092.69 = 7,080.08/x
  3. Step 3: Cross multiply
    12,389.04x = 17,092.69 × 7,080.08
  4. Step 4: Simplify right side
    12,389.04x = 121,017,509.45
  5. Step 5: Solve for x
    x = 121,017,509.45/12,389.04
  6. Step 6: Final answer
    x = 9,768.11

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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.