Home / 10,403.21-14,374.71-9,074.61

Finding the Fourth Proportional to 10,403.21, 14,374.71 and 9,074.61

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Solution

The fourth proportional to 10,403.21, 14,374.71 and 9,074.61 is: 12,538.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,403.21 : 14,374.71 = 9,074.61 : x
  2. Step 2: Convert to fraction form
    10,403.21/14,374.71 = 9,074.61/x
  3. Step 3: Cross multiply
    10,403.21x = 14,374.71 × 9,074.61
  4. Step 4: Simplify right side
    10,403.21x = 130,444,887.11
  5. Step 5: Solve for x
    x = 130,444,887.11/10,403.21
  6. Step 6: Final answer
    x = 12,538.90

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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.