Home / 15,562.80-21,468.24-9,270.72

Finding the Fourth Proportional to 15,562.80, 21,468.24 and 9,270.72

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Solution

The fourth proportional to 15,562.80, 21,468.24 and 9,270.72 is: 12,788.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,562.80 : 21,468.24 = 9,270.72 : x
  2. Step 2: Convert to fraction form
    15,562.80/21,468.24 = 9,270.72/x
  3. Step 3: Cross multiply
    15,562.80x = 21,468.24 × 9,270.72
  4. Step 4: Simplify right side
    15,562.80x = 199,026,041.93
  5. Step 5: Solve for x
    x = 199,026,041.93/15,562.80
  6. Step 6: Final answer
    x = 12,788.58

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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.