Home / 7,715.34-10,647.30-4,530.90

Finding the Fourth Proportional to 7,715.34, 10,647.30 and 4,530.90

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Solution

The fourth proportional to 7,715.34, 10,647.30 and 4,530.90 is: 6,252.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,715.34 : 10,647.30 = 4,530.90 : x
  2. Step 2: Convert to fraction form
    7,715.34/10,647.30 = 4,530.90/x
  3. Step 3: Cross multiply
    7,715.34x = 10,647.30 × 4,530.90
  4. Step 4: Simplify right side
    7,715.34x = 48,241,851.57
  5. Step 5: Solve for x
    x = 48,241,851.57/7,715.34
  6. Step 6: Final answer
    x = 6,252.72

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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.