Home / 12,130.60-16,742.10-7,097.80

Finding the Fourth Proportional to 12,130.60, 16,742.10 and 7,097.80

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Solution

The fourth proportional to 12,130.60, 16,742.10 and 7,097.80 is: 9,796.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,130.60 : 16,742.10 = 7,097.80 : x
  2. Step 2: Convert to fraction form
    12,130.60/16,742.10 = 7,097.80/x
  3. Step 3: Cross multiply
    12,130.60x = 16,742.10 × 7,097.80
  4. Step 4: Simplify right side
    12,130.60x = 118,832,077.38
  5. Step 5: Solve for x
    x = 118,832,077.38/12,130.60
  6. Step 6: Final answer
    x = 9,796.06

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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.