Home / 10,275.68-15,405.44-4,347.72

Finding the Fourth Proportional to 10,275.68, 15,405.44 and 4,347.72

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Solution

The fourth proportional to 10,275.68, 15,405.44 and 4,347.72 is: 6,518.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,275.68 : 15,405.44 = 4,347.72 : x
  2. Step 2: Convert to fraction form
    10,275.68/15,405.44 = 4,347.72/x
  3. Step 3: Cross multiply
    10,275.68x = 15,405.44 × 4,347.72
  4. Step 4: Simplify right side
    10,275.68x = 66,978,539.60
  5. Step 5: Solve for x
    x = 66,978,539.60/10,275.68
  6. Step 6: Final answer
    x = 6,518.16

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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.