Home / 15,440.37-21,308.09-9,475.32

Finding the Fourth Proportional to 15,440.37, 21,308.09 and 9,475.32

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Solution

The fourth proportional to 15,440.37, 21,308.09 and 9,475.32 is: 13,076.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,440.37 : 21,308.09 = 9,475.32 : x
  2. Step 2: Convert to fraction form
    15,440.37/21,308.09 = 9,475.32/x
  3. Step 3: Cross multiply
    15,440.37x = 21,308.09 × 9,475.32
  4. Step 4: Simplify right side
    15,440.37x = 201,900,971.34
  5. Step 5: Solve for x
    x = 201,900,971.34/15,440.37
  6. Step 6: Final answer
    x = 13,076.17

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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.