Home / 7,715.99-10,647.54-4,358.94

Finding the Fourth Proportional to 7,715.99, 10,647.54 and 4,358.94

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Solution

The fourth proportional to 7,715.99, 10,647.54 and 4,358.94 is: 6,015.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,715.99 : 10,647.54 = 4,358.94 : x
  2. Step 2: Convert to fraction form
    7,715.99/10,647.54 = 4,358.94/x
  3. Step 3: Cross multiply
    7,715.99x = 10,647.54 × 4,358.94
  4. Step 4: Simplify right side
    7,715.99x = 46,411,988.01
  5. Step 5: Solve for x
    x = 46,411,988.01/7,715.99
  6. Step 6: Final answer
    x = 6,015.04

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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.