Home / 7,014.40-10,521.60-6,366.40

Finding the Fourth Proportional to 7,014.40, 10,521.60 and 6,366.40

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Solution

The fourth proportional to 7,014.40, 10,521.60 and 6,366.40 is: 9,549.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,014.40 : 10,521.60 = 6,366.40 : x
  2. Step 2: Convert to fraction form
    7,014.40/10,521.60 = 6,366.40/x
  3. Step 3: Cross multiply
    7,014.40x = 10,521.60 × 6,366.40
  4. Step 4: Simplify right side
    7,014.40x = 66,984,714.24
  5. Step 5: Solve for x
    x = 66,984,714.24/7,014.40
  6. Step 6: Final answer
    x = 9,549.60

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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.