Home / 15,328.32-23,001.12-7,120.32

Finding the Fourth Proportional to 15,328.32, 23,001.12 and 7,120.32

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Solution

The fourth proportional to 15,328.32, 23,001.12 and 7,120.32 is: 10,684.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,328.32 : 23,001.12 = 7,120.32 : x
  2. Step 2: Convert to fraction form
    15,328.32/23,001.12 = 7,120.32/x
  3. Step 3: Cross multiply
    15,328.32x = 23,001.12 × 7,120.32
  4. Step 4: Simplify right side
    15,328.32x = 163,775,334.76
  5. Step 5: Solve for x
    x = 163,775,334.76/15,328.32
  6. Step 6: Final answer
    x = 10,684.49

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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.