Home / 15,376.17-21,230.49-9,415.97

Finding the Fourth Proportional to 15,376.17, 21,230.49 and 9,415.97

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Solution

The fourth proportional to 15,376.17, 21,230.49 and 9,415.97 is: 13,001.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,376.17 : 21,230.49 = 9,415.97 : x
  2. Step 2: Convert to fraction form
    15,376.17/21,230.49 = 9,415.97/x
  3. Step 3: Cross multiply
    15,376.17x = 21,230.49 × 9,415.97
  4. Step 4: Simplify right side
    15,376.17x = 199,905,550.77
  5. Step 5: Solve for x
    x = 199,905,550.77/15,376.17
  6. Step 6: Final answer
    x = 13,001.00

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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.