Home / 15,440.64-23,129.96-7,109.08

Finding the Fourth Proportional to 15,440.64, 23,129.96 and 7,109.08

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Solution

The fourth proportional to 15,440.64, 23,129.96 and 7,109.08 is: 10,649.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,440.64 : 23,129.96 = 7,109.08 : x
  2. Step 2: Convert to fraction form
    15,440.64/23,129.96 = 7,109.08/x
  3. Step 3: Cross multiply
    15,440.64x = 23,129.96 × 7,109.08
  4. Step 4: Simplify right side
    15,440.64x = 164,432,736.04
  5. Step 5: Solve for x
    x = 164,432,736.04/15,440.64
  6. Step 6: Final answer
    x = 10,649.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.