Home / 8,919.93-12,282.02-7,923.48

Finding the Fourth Proportional to 8,919.93, 12,282.02 and 7,923.48

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Solution

The fourth proportional to 8,919.93, 12,282.02 and 7,923.48 is: 10,909.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,919.93 : 12,282.02 = 7,923.48 : x
  2. Step 2: Convert to fraction form
    8,919.93/12,282.02 = 7,923.48/x
  3. Step 3: Cross multiply
    8,919.93x = 12,282.02 × 7,923.48
  4. Step 4: Simplify right side
    8,919.93x = 97,316,359.64
  5. Step 5: Solve for x
    x = 97,316,359.64/8,919.93
  6. Step 6: Final answer
    x = 10,909.99

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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.