Home / 15,470.76-21,347.46-9,185.64

Finding the Fourth Proportional to 15,470.76, 21,347.46 and 9,185.64

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Solution

The fourth proportional to 15,470.76, 21,347.46 and 9,185.64 is: 12,674.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,470.76 : 21,347.46 = 9,185.64 : x
  2. Step 2: Convert to fraction form
    15,470.76/21,347.46 = 9,185.64/x
  3. Step 3: Cross multiply
    15,470.76x = 21,347.46 × 9,185.64
  4. Step 4: Simplify right side
    15,470.76x = 196,090,082.47
  5. Step 5: Solve for x
    x = 196,090,082.47/15,470.76
  6. Step 6: Final answer
    x = 12,674.88

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Double scale
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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.