Home / 12,558.16-17,330.12-7,254.64

Finding the Fourth Proportional to 12,558.16, 17,330.12 and 7,254.64

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Solution

The fourth proportional to 12,558.16, 17,330.12 and 7,254.64 is: 10,011.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,558.16 : 17,330.12 = 7,254.64 : x
  2. Step 2: Convert to fraction form
    12,558.16/17,330.12 = 7,254.64/x
  3. Step 3: Cross multiply
    12,558.16x = 17,330.12 × 7,254.64
  4. Step 4: Simplify right side
    12,558.16x = 125,723,781.76
  5. Step 5: Solve for x
    x = 125,723,781.76/12,558.16
  6. Step 6: Final answer
    x = 10,011.32

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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.