Home / 8,316.40-11,477.28-4,780.84

Finding the Fourth Proportional to 8,316.40, 11,477.28 and 4,780.84

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Solution

The fourth proportional to 8,316.40, 11,477.28 and 4,780.84 is: 6,597.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,316.40 : 11,477.28 = 4,780.84 : x
  2. Step 2: Convert to fraction form
    8,316.40/11,477.28 = 4,780.84/x
  3. Step 3: Cross multiply
    8,316.40x = 11,477.28 × 4,780.84
  4. Step 4: Simplify right side
    8,316.40x = 54,871,039.32
  5. Step 5: Solve for x
    x = 54,871,039.32/8,316.40
  6. Step 6: Final answer
    x = 6,597.93

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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.