Home / 7,287.64-10,070.18-5,188.12

Finding the Fourth Proportional to 7,287.64, 10,070.18 and 5,188.12

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Solution

The fourth proportional to 7,287.64, 10,070.18 and 5,188.12 is: 7,169.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,287.64 : 10,070.18 = 5,188.12 : x
  2. Step 2: Convert to fraction form
    7,287.64/10,070.18 = 5,188.12/x
  3. Step 3: Cross multiply
    7,287.64x = 10,070.18 × 5,188.12
  4. Step 4: Simplify right side
    7,287.64x = 52,245,302.26
  5. Step 5: Solve for x
    x = 52,245,302.26/7,287.64
  6. Step 6: Final answer
    x = 7,169.03

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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.