Home / 10,412.45-14,379.68-6,637.40

Finding the Fourth Proportional to 10,412.45, 14,379.68 and 6,637.40

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Solution

The fourth proportional to 10,412.45, 14,379.68 and 6,637.40 is: 9,166.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,412.45 : 14,379.68 = 6,637.40 : x
  2. Step 2: Convert to fraction form
    10,412.45/14,379.68 = 6,637.40/x
  3. Step 3: Cross multiply
    10,412.45x = 14,379.68 × 6,637.40
  4. Step 4: Simplify right side
    10,412.45x = 95,443,582.95
  5. Step 5: Solve for x
    x = 95,443,582.95/10,412.45
  6. Step 6: Final answer
    x = 9,166.30

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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.