Home / 11,875.48-16,386.32-6,839.92

Finding the Fourth Proportional to 11,875.48, 16,386.32 and 6,839.92

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Solution

The fourth proportional to 11,875.48, 16,386.32 and 6,839.92 is: 9,438.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,875.48 : 16,386.32 = 6,839.92 : x
  2. Step 2: Convert to fraction form
    11,875.48/16,386.32 = 6,839.92/x
  3. Step 3: Cross multiply
    11,875.48x = 16,386.32 × 6,839.92
  4. Step 4: Simplify right side
    11,875.48x = 112,081,117.89
  5. Step 5: Solve for x
    x = 112,081,117.89/11,875.48
  6. Step 6: Final answer
    x = 9,438.03

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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.