Home / 8,943.90-12,343.16-5,167.23

Finding the Fourth Proportional to 8,943.90, 12,343.16 and 5,167.23

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Solution

The fourth proportional to 8,943.90, 12,343.16 and 5,167.23 is: 7,131.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,943.90 : 12,343.16 = 5,167.23 : x
  2. Step 2: Convert to fraction form
    8,943.90/12,343.16 = 5,167.23/x
  3. Step 3: Cross multiply
    8,943.90x = 12,343.16 × 5,167.23
  4. Step 4: Simplify right side
    8,943.90x = 63,779,859.09
  5. Step 5: Solve for x
    x = 63,779,859.09/8,943.90
  6. Step 6: Final answer
    x = 7,131.10

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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.