Home / 10,291.04-14,188.66-8,400.70

Finding the Fourth Proportional to 10,291.04, 14,188.66 and 8,400.70

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Solution

The fourth proportional to 10,291.04, 14,188.66 and 8,400.70 is: 11,582.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,291.04 : 14,188.66 = 8,400.70 : x
  2. Step 2: Convert to fraction form
    10,291.04/14,188.66 = 8,400.70/x
  3. Step 3: Cross multiply
    10,291.04x = 14,188.66 × 8,400.70
  4. Step 4: Simplify right side
    10,291.04x = 119,194,676.06
  5. Step 5: Solve for x
    x = 119,194,676.06/10,291.04
  6. Step 6: Final answer
    x = 11,582.37

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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.