Home / 15,854.80-21,872.76-9,563.68

Finding the Fourth Proportional to 15,854.80, 21,872.76 and 9,563.68

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Solution

The fourth proportional to 15,854.80, 21,872.76 and 9,563.68 is: 13,193.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,854.80 : 21,872.76 = 9,563.68 : x
  2. Step 2: Convert to fraction form
    15,854.80/21,872.76 = 9,563.68/x
  3. Step 3: Cross multiply
    15,854.80x = 21,872.76 × 9,563.68
  4. Step 4: Simplify right side
    15,854.80x = 209,184,077.36
  5. Step 5: Solve for x
    x = 209,184,077.36/15,854.80
  6. Step 6: Final answer
    x = 13,193.74

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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.