Home / 15,342.02-21,179.12-11,566.72

Finding the Fourth Proportional to 15,342.02, 21,179.12 and 11,566.72

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Solution

The fourth proportional to 15,342.02, 21,179.12 and 11,566.72 is: 15,967.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,342.02 : 21,179.12 = 11,566.72 : x
  2. Step 2: Convert to fraction form
    15,342.02/21,179.12 = 11,566.72/x
  3. Step 3: Cross multiply
    15,342.02x = 21,179.12 × 11,566.72
  4. Step 4: Simplify right side
    15,342.02x = 244,972,950.89
  5. Step 5: Solve for x
    x = 244,972,950.89/15,342.02
  6. Step 6: Final answer
    x = 15,967.45

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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.