Home / 8,130.24-12,166.20-7,038.36

Finding the Fourth Proportional to 8,130.24, 12,166.20 and 7,038.36

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Solution

The fourth proportional to 8,130.24, 12,166.20 and 7,038.36 is: 10,532.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,130.24 : 12,166.20 = 7,038.36 : x
  2. Step 2: Convert to fraction form
    8,130.24/12,166.20 = 7,038.36/x
  3. Step 3: Cross multiply
    8,130.24x = 12,166.20 × 7,038.36
  4. Step 4: Simplify right side
    8,130.24x = 85,630,095.43
  5. Step 5: Solve for x
    x = 85,630,095.43/8,130.24
  6. Step 6: Final answer
    x = 10,532.30

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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.