Home / 12,437.55-18,653.55-7,500.39

Finding the Fourth Proportional to 12,437.55, 18,653.55 and 7,500.39

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Solution

The fourth proportional to 12,437.55, 18,653.55 and 7,500.39 is: 11,248.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,437.55 : 18,653.55 = 7,500.39 : x
  2. Step 2: Convert to fraction form
    12,437.55/18,653.55 = 7,500.39/x
  3. Step 3: Cross multiply
    12,437.55x = 18,653.55 × 7,500.39
  4. Step 4: Simplify right side
    12,437.55x = 139,908,899.88
  5. Step 5: Solve for x
    x = 139,908,899.88/12,437.55
  6. Step 6: Final answer
    x = 11,248.92

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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.