Home / 12,775.18-17,630.04-7,110.32

Finding the Fourth Proportional to 12,775.18, 17,630.04 and 7,110.32

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Solution

The fourth proportional to 12,775.18, 17,630.04 and 7,110.32 is: 9,812.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,775.18 : 17,630.04 = 7,110.32 : x
  2. Step 2: Convert to fraction form
    12,775.18/17,630.04 = 7,110.32/x
  3. Step 3: Cross multiply
    12,775.18x = 17,630.04 × 7,110.32
  4. Step 4: Simplify right side
    12,775.18x = 125,355,226.01
  5. Step 5: Solve for x
    x = 125,355,226.01/12,775.18
  6. Step 6: Final answer
    x = 9,812.40

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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.