Home / 8,634.72-12,957.84-4,740.24

Finding the Fourth Proportional to 8,634.72, 12,957.84 and 4,740.24

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Solution

The fourth proportional to 8,634.72, 12,957.84 and 4,740.24 is: 7,113.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,634.72 : 12,957.84 = 4,740.24 : x
  2. Step 2: Convert to fraction form
    8,634.72/12,957.84 = 4,740.24/x
  3. Step 3: Cross multiply
    8,634.72x = 12,957.84 × 4,740.24
  4. Step 4: Simplify right side
    8,634.72x = 61,423,271.48
  5. Step 5: Solve for x
    x = 61,423,271.48/8,634.72
  6. Step 6: Final answer
    x = 7,113.52

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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.