Home / 12,345.80-18,523.74-6,507.56

Finding the Fourth Proportional to 12,345.80, 18,523.74 and 6,507.56

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Solution

The fourth proportional to 12,345.80, 18,523.74 and 6,507.56 is: 9,764.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,345.80 : 18,523.74 = 6,507.56 : x
  2. Step 2: Convert to fraction form
    12,345.80/18,523.74 = 6,507.56/x
  3. Step 3: Cross multiply
    12,345.80x = 18,523.74 × 6,507.56
  4. Step 4: Simplify right side
    12,345.80x = 120,544,349.47
  5. Step 5: Solve for x
    x = 120,544,349.47/12,345.80
  6. Step 6: Final answer
    x = 9,764.00

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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.