Home / 9,291.28-12,822.60-6,871

Finding the Fourth Proportional to 9,291.28, 12,822.60 and 6,871

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Solution

The fourth proportional to 9,291.28, 12,822.60 and 6,871 is: 9,482.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,291.28 : 12,822.60 = 6,871 : x
  2. Step 2: Convert to fraction form
    9,291.28/12,822.60 = 6,871/x
  3. Step 3: Cross multiply
    9,291.28x = 12,822.60 × 6,871
  4. Step 4: Simplify right side
    9,291.28x = 88,104,084.60
  5. Step 5: Solve for x
    x = 88,104,084.60/9,291.28
  6. Step 6: Final answer
    x = 9,482.45

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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.