Home / 7,715.71-10,647.68-4,358.53

Finding the Fourth Proportional to 7,715.71, 10,647.68 and 4,358.53

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Solution

The fourth proportional to 7,715.71, 10,647.68 and 4,358.53 is: 6,014.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,715.71 : 10,647.68 = 4,358.53 : x
  2. Step 2: Convert to fraction form
    7,715.71/10,647.68 = 4,358.53/x
  3. Step 3: Cross multiply
    7,715.71x = 10,647.68 × 4,358.53
  4. Step 4: Simplify right side
    7,715.71x = 46,408,232.71
  5. Step 5: Solve for x
    x = 46,408,232.71/7,715.71
  6. Step 6: Final answer
    x = 6,014.77

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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.