Home / 15,312.44-21,133.46-9,347.56

Finding the Fourth Proportional to 15,312.44, 21,133.46 and 9,347.56

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Solution

The fourth proportional to 15,312.44, 21,133.46 and 9,347.56 is: 12,901.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,312.44 : 21,133.46 = 9,347.56 : x
  2. Step 2: Convert to fraction form
    15,312.44/21,133.46 = 9,347.56/x
  3. Step 3: Cross multiply
    15,312.44x = 21,133.46 × 9,347.56
  4. Step 4: Simplify right side
    15,312.44x = 197,546,291.45
  5. Step 5: Solve for x
    x = 197,546,291.45/15,312.44
  6. Step 6: Final answer
    x = 12,901.03

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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.