Home / 8,521.04-11,760.32-4,985.40

Finding the Fourth Proportional to 8,521.04, 11,760.32 and 4,985.40

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Solution

The fourth proportional to 8,521.04, 11,760.32 and 4,985.40 is: 6,880.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,521.04 : 11,760.32 = 4,985.40 : x
  2. Step 2: Convert to fraction form
    8,521.04/11,760.32 = 4,985.40/x
  3. Step 3: Cross multiply
    8,521.04x = 11,760.32 × 4,985.40
  4. Step 4: Simplify right side
    8,521.04x = 58,629,899.33
  5. Step 5: Solve for x
    x = 58,629,899.33/8,521.04
  6. Step 6: Final answer
    x = 6,880.60

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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.