Home / 11,345.10-15,619.23-8,950.74

Finding the Fourth Proportional to 11,345.10, 15,619.23 and 8,950.74

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Solution

The fourth proportional to 11,345.10, 15,619.23 and 8,950.74 is: 12,322.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,345.10 : 15,619.23 = 8,950.74 : x
  2. Step 2: Convert to fraction form
    11,345.10/15,619.23 = 8,950.74/x
  3. Step 3: Cross multiply
    11,345.10x = 15,619.23 × 8,950.74
  4. Step 4: Simplify right side
    11,345.10x = 139,803,666.73
  5. Step 5: Solve for x
    x = 139,803,666.73/11,345.10
  6. Step 6: Final answer
    x = 12,322.82

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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.