Home / 15,895.86-21,937.34-9,181.77

Finding the Fourth Proportional to 15,895.86, 21,937.34 and 9,181.77

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Solution

The fourth proportional to 15,895.86, 21,937.34 and 9,181.77 is: 12,671.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,895.86 : 21,937.34 = 9,181.77 : x
  2. Step 2: Convert to fraction form
    15,895.86/21,937.34 = 9,181.77/x
  3. Step 3: Cross multiply
    15,895.86x = 21,937.34 × 9,181.77
  4. Step 4: Simplify right side
    15,895.86x = 201,423,564.38
  5. Step 5: Solve for x
    x = 201,423,564.38/15,895.86
  6. Step 6: Final answer
    x = 12,671.45

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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.