Home / 8,070.16-12,110.12-3,140.32

Finding the Fourth Proportional to 8,070.16, 12,110.12 and 3,140.32

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Solution

The fourth proportional to 8,070.16, 12,110.12 and 3,140.32 is: 4,712.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,070.16 : 12,110.12 = 3,140.32 : x
  2. Step 2: Convert to fraction form
    8,070.16/12,110.12 = 3,140.32/x
  3. Step 3: Cross multiply
    8,070.16x = 12,110.12 × 3,140.32
  4. Step 4: Simplify right side
    8,070.16x = 38,029,652.04
  5. Step 5: Solve for x
    x = 38,029,652.04/8,070.16
  6. Step 6: Final answer
    x = 4,712.38

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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.