Home / 7,623.16-10,520.16-4,478.72

Finding the Fourth Proportional to 7,623.16, 10,520.16 and 4,478.72

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Solution

The fourth proportional to 7,623.16, 10,520.16 and 4,478.72 is: 6,180.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,623.16 : 10,520.16 = 4,478.72 : x
  2. Step 2: Convert to fraction form
    7,623.16/10,520.16 = 4,478.72/x
  3. Step 3: Cross multiply
    7,623.16x = 10,520.16 × 4,478.72
  4. Step 4: Simplify right side
    7,623.16x = 47,116,851.00
  5. Step 5: Solve for x
    x = 47,116,851.00/7,623.16
  6. Step 6: Final answer
    x = 6,180.75

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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.