Home / 15,559.49-21,472.43-11,030.18

Finding the Fourth Proportional to 15,559.49, 21,472.43 and 11,030.18

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Solution

The fourth proportional to 15,559.49, 21,472.43 and 11,030.18 is: 15,221.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,559.49 : 21,472.43 = 11,030.18 : x
  2. Step 2: Convert to fraction form
    15,559.49/21,472.43 = 11,030.18/x
  3. Step 3: Cross multiply
    15,559.49x = 21,472.43 × 11,030.18
  4. Step 4: Simplify right side
    15,559.49x = 236,844,605.42
  5. Step 5: Solve for x
    x = 236,844,605.42/15,559.49
  6. Step 6: Final answer
    x = 15,221.87

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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.