Home / 7,557.28-10,431.12-4,572.64

Finding the Fourth Proportional to 7,557.28, 10,431.12 and 4,572.64

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Solution

The fourth proportional to 7,557.28, 10,431.12 and 4,572.64 is: 6,311.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,557.28 : 10,431.12 = 4,572.64 : x
  2. Step 2: Convert to fraction form
    7,557.28/10,431.12 = 4,572.64/x
  3. Step 3: Cross multiply
    7,557.28x = 10,431.12 × 4,572.64
  4. Step 4: Simplify right side
    7,557.28x = 47,697,756.56
  5. Step 5: Solve for x
    x = 47,697,756.56/7,557.28
  6. Step 6: Final answer
    x = 6,311.50

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Half scale
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Double scale
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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.