Home / 7,715.13-10,646.69-4,358.30

Finding the Fourth Proportional to 7,715.13, 10,646.69 and 4,358.30

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Solution

The fourth proportional to 7,715.13, 10,646.69 and 4,358.30 is: 6,014.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,715.13 : 10,646.69 = 4,358.30 : x
  2. Step 2: Convert to fraction form
    7,715.13/10,646.69 = 4,358.30/x
  3. Step 3: Cross multiply
    7,715.13x = 10,646.69 × 4,358.30
  4. Step 4: Simplify right side
    7,715.13x = 46,401,394.00
  5. Step 5: Solve for x
    x = 46,401,394.00/7,715.13
  6. Step 6: Final answer
    x = 6,014.34

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Half 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.