Home / 9,368.50-12,928.62-5,177.02

Finding the Fourth Proportional to 9,368.50, 12,928.62 and 5,177.02

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Solution

The fourth proportional to 9,368.50, 12,928.62 and 5,177.02 is: 7,144.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,368.50 : 12,928.62 = 5,177.02 : x
  2. Step 2: Convert to fraction form
    9,368.50/12,928.62 = 5,177.02/x
  3. Step 3: Cross multiply
    9,368.50x = 12,928.62 × 5,177.02
  4. Step 4: Simplify right side
    9,368.50x = 66,931,724.31
  5. Step 5: Solve for x
    x = 66,931,724.31/9,368.50
  6. Step 6: Final answer
    x = 7,144.34

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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.