Home / 10,212.77-15,287.56-8,718.32

Finding the Fourth Proportional to 10,212.77, 15,287.56 and 8,718.32

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Solution

The fourth proportional to 10,212.77, 15,287.56 and 8,718.32 is: 13,050.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,212.77 : 15,287.56 = 8,718.32 : x
  2. Step 2: Convert to fraction form
    10,212.77/15,287.56 = 8,718.32/x
  3. Step 3: Cross multiply
    10,212.77x = 15,287.56 × 8,718.32
  4. Step 4: Simplify right side
    10,212.77x = 133,281,840.10
  5. Step 5: Solve for x
    x = 133,281,840.10/10,212.77
  6. Step 6: Final answer
    x = 13,050.51

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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.