Home / 12,400.86-18,583.05-9,774.63

Finding the Fourth Proportional to 12,400.86, 18,583.05 and 9,774.63

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Solution

The fourth proportional to 12,400.86, 18,583.05 and 9,774.63 is: 14,647.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,400.86 : 18,583.05 = 9,774.63 : x
  2. Step 2: Convert to fraction form
    12,400.86/18,583.05 = 9,774.63/x
  3. Step 3: Cross multiply
    12,400.86x = 18,583.05 × 9,774.63
  4. Step 4: Simplify right side
    12,400.86x = 181,642,438.02
  5. Step 5: Solve for x
    x = 181,642,438.02/12,400.86
  6. Step 6: Final answer
    x = 14,647.57

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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.