Home / 8,728.26-13,089.12-4,343.40

Finding the Fourth Proportional to 8,728.26, 13,089.12 and 4,343.40

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Solution

The fourth proportional to 8,728.26, 13,089.12 and 4,343.40 is: 6,513.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,728.26 : 13,089.12 = 4,343.40 : x
  2. Step 2: Convert to fraction form
    8,728.26/13,089.12 = 4,343.40/x
  3. Step 3: Cross multiply
    8,728.26x = 13,089.12 × 4,343.40
  4. Step 4: Simplify right side
    8,728.26x = 56,851,283.81
  5. Step 5: Solve for x
    x = 56,851,283.81/8,728.26
  6. Step 6: Final answer
    x = 6,513.47

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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.