Home / 14,306.48-21,459-3,918.32

Finding the Fourth Proportional to 14,306.48, 21,459 and 3,918.32

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Solution

The fourth proportional to 14,306.48, 21,459 and 3,918.32 is: 5,877.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,306.48 : 21,459 = 3,918.32 : x
  2. Step 2: Convert to fraction form
    14,306.48/21,459 = 3,918.32/x
  3. Step 3: Cross multiply
    14,306.48x = 21,459 × 3,918.32
  4. Step 4: Simplify right side
    14,306.48x = 84,083,228.88
  5. Step 5: Solve for x
    x = 84,083,228.88/14,306.48
  6. Step 6: Final answer
    x = 5,877.28

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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.