Home / 9,878.04-13,631.69-5,628.92

Finding the Fourth Proportional to 9,878.04, 13,631.69 and 5,628.92

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Solution

The fourth proportional to 9,878.04, 13,631.69 and 5,628.92 is: 7,767.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,878.04 : 13,631.69 = 5,628.92 : x
  2. Step 2: Convert to fraction form
    9,878.04/13,631.69 = 5,628.92/x
  3. Step 3: Cross multiply
    9,878.04x = 13,631.69 × 5,628.92
  4. Step 4: Simplify right side
    9,878.04x = 76,731,638.39
  5. Step 5: Solve for x
    x = 76,731,638.39/9,878.04
  6. Step 6: Final answer
    x = 7,767.90

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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.