Home / 15,817.13-21,827.64-9,530.81

Finding the Fourth Proportional to 15,817.13, 21,827.64 and 9,530.81

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Solution

The fourth proportional to 15,817.13, 21,827.64 and 9,530.81 is: 13,152.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,817.13 : 21,827.64 = 9,530.81 : x
  2. Step 2: Convert to fraction form
    15,817.13/21,827.64 = 9,530.81/x
  3. Step 3: Cross multiply
    15,817.13x = 21,827.64 × 9,530.81
  4. Step 4: Simplify right side
    15,817.13x = 208,034,932.80
  5. Step 5: Solve for x
    x = 208,034,932.80/15,817.13
  6. Step 6: Final answer
    x = 13,152.51

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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.