Home / 12,331.26-18,468.53-7,390.01

Finding the Fourth Proportional to 12,331.26, 18,468.53 and 7,390.01

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Solution

The fourth proportional to 12,331.26, 18,468.53 and 7,390.01 is: 11,068.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,331.26 : 18,468.53 = 7,390.01 : x
  2. Step 2: Convert to fraction form
    12,331.26/18,468.53 = 7,390.01/x
  3. Step 3: Cross multiply
    12,331.26x = 18,468.53 × 7,390.01
  4. Step 4: Simplify right side
    12,331.26x = 136,482,627.16
  5. Step 5: Solve for x
    x = 136,482,627.16/12,331.26
  6. Step 6: Final answer
    x = 11,068.02

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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.