Home / 8,004.90-12,007.35-7,130.10

Finding the Fourth Proportional to 8,004.90, 12,007.35 and 7,130.10

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Solution

The fourth proportional to 8,004.90, 12,007.35 and 7,130.10 is: 10,695.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,004.90 : 12,007.35 = 7,130.10 : x
  2. Step 2: Convert to fraction form
    8,004.90/12,007.35 = 7,130.10/x
  3. Step 3: Cross multiply
    8,004.90x = 12,007.35 × 7,130.10
  4. Step 4: Simplify right side
    8,004.90x = 85,613,606.24
  5. Step 5: Solve for x
    x = 85,613,606.24/8,004.90
  6. Step 6: Final answer
    x = 10,695.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.