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Finding the Fourth Proportional to 7,008.16, 10,512.60 and 1,814.08

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Solution

The fourth proportional to 7,008.16, 10,512.60 and 1,814.08 is: 2,721.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,008.16 : 10,512.60 = 1,814.08 : x
  2. Step 2: Convert to fraction form
    7,008.16/10,512.60 = 1,814.08/x
  3. Step 3: Cross multiply
    7,008.16x = 10,512.60 × 1,814.08
  4. Step 4: Simplify right side
    7,008.16x = 19,070,697.41
  5. Step 5: Solve for x
    x = 19,070,697.41/7,008.16
  6. Step 6: Final answer
    x = 2,721.21

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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.