Home / 15,835.23-21,854.88-9,868.77

Finding the Fourth Proportional to 15,835.23, 21,854.88 and 9,868.77

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Solution

The fourth proportional to 15,835.23, 21,854.88 and 9,868.77 is: 13,620.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,835.23 : 21,854.88 = 9,868.77 : x
  2. Step 2: Convert to fraction form
    15,835.23/21,854.88 = 9,868.77/x
  3. Step 3: Cross multiply
    15,835.23x = 21,854.88 × 9,868.77
  4. Step 4: Simplify right side
    15,835.23x = 215,680,784.10
  5. Step 5: Solve for x
    x = 215,680,784.10/15,835.23
  6. Step 6: Final answer
    x = 13,620.31

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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.