Home / 15,693.91-21,657.06-11,225.14

Finding the Fourth Proportional to 15,693.91, 21,657.06 and 11,225.14

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Solution

The fourth proportional to 15,693.91, 21,657.06 and 11,225.14 is: 15,490.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,693.91 : 21,657.06 = 11,225.14 : x
  2. Step 2: Convert to fraction form
    15,693.91/21,657.06 = 11,225.14/x
  3. Step 3: Cross multiply
    15,693.91x = 21,657.06 × 11,225.14
  4. Step 4: Simplify right side
    15,693.91x = 243,103,476.35
  5. Step 5: Solve for x
    x = 243,103,476.35/15,693.91
  6. Step 6: Final answer
    x = 15,490.31

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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.