Home / 15,845.66-21,865.51-9,470.98

Finding the Fourth Proportional to 15,845.66, 21,865.51 and 9,470.98

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Solution

The fourth proportional to 15,845.66, 21,865.51 and 9,470.98 is: 13,069.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,845.66 : 21,865.51 = 9,470.98 : x
  2. Step 2: Convert to fraction form
    15,845.66/21,865.51 = 9,470.98/x
  3. Step 3: Cross multiply
    15,845.66x = 21,865.51 × 9,470.98
  4. Step 4: Simplify right side
    15,845.66x = 207,087,807.90
  5. Step 5: Solve for x
    x = 207,087,807.90/15,845.66
  6. Step 6: Final answer
    x = 13,069.06

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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.