Home / 9,312.04-12,850.28-5,120.26

Finding the Fourth Proportional to 9,312.04, 12,850.28 and 5,120.26

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Solution

The fourth proportional to 9,312.04, 12,850.28 and 5,120.26 is: 7,065.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,312.04 : 12,850.28 = 5,120.26 : x
  2. Step 2: Convert to fraction form
    9,312.04/12,850.28 = 5,120.26/x
  3. Step 3: Cross multiply
    9,312.04x = 12,850.28 × 5,120.26
  4. Step 4: Simplify right side
    9,312.04x = 65,796,774.67
  5. Step 5: Solve for x
    x = 65,796,774.67/9,312.04
  6. Step 6: Final answer
    x = 7,065.77

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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.