Home / 10,479.12-14,455.60-7,957.05

Finding the Fourth Proportional to 10,479.12, 14,455.60 and 7,957.05

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Solution

The fourth proportional to 10,479.12, 14,455.60 and 7,957.05 is: 10,976.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,479.12 : 14,455.60 = 7,957.05 : x
  2. Step 2: Convert to fraction form
    10,479.12/14,455.60 = 7,957.05/x
  3. Step 3: Cross multiply
    10,479.12x = 14,455.60 × 7,957.05
  4. Step 4: Simplify right side
    10,479.12x = 115,023,931.98
  5. Step 5: Solve for x
    x = 115,023,931.98/10,479.12
  6. Step 6: Final answer
    x = 10,976.49

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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.