Home / 15,455.77-21,328.68-8,741.17

Finding the Fourth Proportional to 15,455.77, 21,328.68 and 8,741.17

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Solution

The fourth proportional to 15,455.77, 21,328.68 and 8,741.17 is: 12,062.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,455.77 : 21,328.68 = 8,741.17 : x
  2. Step 2: Convert to fraction form
    15,455.77/21,328.68 = 8,741.17/x
  3. Step 3: Cross multiply
    15,455.77x = 21,328.68 × 8,741.17
  4. Step 4: Simplify right side
    15,455.77x = 186,437,617.76
  5. Step 5: Solve for x
    x = 186,437,617.76/15,455.77
  6. Step 6: Final answer
    x = 12,062.65

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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.