Home / 8,510.12-11,670.68-8,155.32

Finding the Fourth Proportional to 8,510.12, 11,670.68 and 8,155.32

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Solution

The fourth proportional to 8,510.12, 11,670.68 and 8,155.32 is: 11,184.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,510.12 : 11,670.68 = 8,155.32 : x
  2. Step 2: Convert to fraction form
    8,510.12/11,670.68 = 8,155.32/x
  3. Step 3: Cross multiply
    8,510.12x = 11,670.68 × 8,155.32
  4. Step 4: Simplify right side
    8,510.12x = 95,178,130.02
  5. Step 5: Solve for x
    x = 95,178,130.02/8,510.12
  6. Step 6: Final answer
    x = 11,184.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.