Home / 15,416.13-21,262.80-9,366.34

Finding the Fourth Proportional to 15,416.13, 21,262.80 and 9,366.34

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Solution

The fourth proportional to 15,416.13, 21,262.80 and 9,366.34 is: 12,918.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,416.13 : 21,262.80 = 9,366.34 : x
  2. Step 2: Convert to fraction form
    15,416.13/21,262.80 = 9,366.34/x
  3. Step 3: Cross multiply
    15,416.13x = 21,262.80 × 9,366.34
  4. Step 4: Simplify right side
    15,416.13x = 199,154,614.15
  5. Step 5: Solve for x
    x = 199,154,614.15/15,416.13
  6. Step 6: Final answer
    x = 12,918.59

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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.