Home / 9,089.28-12,543.84-5,313.60

Finding the Fourth Proportional to 9,089.28, 12,543.84 and 5,313.60

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Solution

The fourth proportional to 9,089.28, 12,543.84 and 5,313.60 is: 7,333.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,089.28 : 12,543.84 = 5,313.60 : x
  2. Step 2: Convert to fraction form
    9,089.28/12,543.84 = 5,313.60/x
  3. Step 3: Cross multiply
    9,089.28x = 12,543.84 × 5,313.60
  4. Step 4: Simplify right side
    9,089.28x = 66,652,948.22
  5. Step 5: Solve for x
    x = 66,652,948.22/9,089.28
  6. Step 6: Final answer
    x = 7,333.14

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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.