Home / 11,390.04-15,717.78-6,354.18

Finding the Fourth Proportional to 11,390.04, 15,717.78 and 6,354.18

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Solution

The fourth proportional to 11,390.04, 15,717.78 and 6,354.18 is: 8,768.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,390.04 : 15,717.78 = 6,354.18 : x
  2. Step 2: Convert to fraction form
    11,390.04/15,717.78 = 6,354.18/x
  3. Step 3: Cross multiply
    11,390.04x = 15,717.78 × 6,354.18
  4. Step 4: Simplify right side
    11,390.04x = 99,873,603.32
  5. Step 5: Solve for x
    x = 99,873,603.32/11,390.04
  6. Step 6: Final answer
    x = 8,768.50

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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.