Home / 9,011.68-13,449.16-8,778.40

Finding the Fourth Proportional to 9,011.68, 13,449.16 and 8,778.40

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Solution

The fourth proportional to 9,011.68, 13,449.16 and 8,778.40 is: 13,101.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,011.68 : 13,449.16 = 8,778.40 : x
  2. Step 2: Convert to fraction form
    9,011.68/13,449.16 = 8,778.40/x
  3. Step 3: Cross multiply
    9,011.68x = 13,449.16 × 8,778.40
  4. Step 4: Simplify right side
    9,011.68x = 118,062,106.14
  5. Step 5: Solve for x
    x = 118,062,106.14/9,011.68
  6. Step 6: Final answer
    x = 13,101.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.