Home / 8,918.18-12,307.17-4,939.26

Finding the Fourth Proportional to 8,918.18, 12,307.17 and 4,939.26

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Solution

The fourth proportional to 8,918.18, 12,307.17 and 4,939.26 is: 6,816.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,918.18 : 12,307.17 = 4,939.26 : x
  2. Step 2: Convert to fraction form
    8,918.18/12,307.17 = 4,939.26/x
  3. Step 3: Cross multiply
    8,918.18x = 12,307.17 × 4,939.26
  4. Step 4: Simplify right side
    8,918.18x = 60,788,317.71
  5. Step 5: Solve for x
    x = 60,788,317.71/8,918.18
  6. Step 6: Final answer
    x = 6,816.23

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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.