Home / 9,015.20-13,522.80-6,538.40

Finding the Fourth Proportional to 9,015.20, 13,522.80 and 6,538.40

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Solution

The fourth proportional to 9,015.20, 13,522.80 and 6,538.40 is: 9,807.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,015.20 : 13,522.80 = 6,538.40 : x
  2. Step 2: Convert to fraction form
    9,015.20/13,522.80 = 6,538.40/x
  3. Step 3: Cross multiply
    9,015.20x = 13,522.80 × 6,538.40
  4. Step 4: Simplify right side
    9,015.20x = 88,417,475.52
  5. Step 5: Solve for x
    x = 88,417,475.52/9,015.20
  6. Step 6: Final answer
    x = 9,807.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.