Home / 15,863.13-21,888.23-9,573.21

Finding the Fourth Proportional to 15,863.13, 21,888.23 and 9,573.21

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Solution

The fourth proportional to 15,863.13, 21,888.23 and 9,573.21 is: 13,209.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,863.13 : 21,888.23 = 9,573.21 : x
  2. Step 2: Convert to fraction form
    15,863.13/21,888.23 = 9,573.21/x
  3. Step 3: Cross multiply
    15,863.13x = 21,888.23 × 9,573.21
  4. Step 4: Simplify right side
    15,863.13x = 209,540,574.45
  5. Step 5: Solve for x
    x = 209,540,574.45/15,863.13
  6. Step 6: Final answer
    x = 13,209.28

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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.