Home / 8,928.90-12,316.42-5,904.02

Finding the Fourth Proportional to 8,928.90, 12,316.42 and 5,904.02

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Solution

The fourth proportional to 8,928.90, 12,316.42 and 5,904.02 is: 8,143.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,928.90 : 12,316.42 = 5,904.02 : x
  2. Step 2: Convert to fraction form
    8,928.90/12,316.42 = 5,904.02/x
  3. Step 3: Cross multiply
    8,928.90x = 12,316.42 × 5,904.02
  4. Step 4: Simplify right side
    8,928.90x = 72,716,428.18
  5. Step 5: Solve for x
    x = 72,716,428.18/8,928.90
  6. Step 6: Final answer
    x = 8,143.94

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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.