Home / 9,207.18-12,705.30-5,430.16

Finding the Fourth Proportional to 9,207.18, 12,705.30 and 5,430.16

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Solution

The fourth proportional to 9,207.18, 12,705.30 and 5,430.16 is: 7,493.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,207.18 : 12,705.30 = 5,430.16 : x
  2. Step 2: Convert to fraction form
    9,207.18/12,705.30 = 5,430.16/x
  3. Step 3: Cross multiply
    9,207.18x = 12,705.30 × 5,430.16
  4. Step 4: Simplify right side
    9,207.18x = 68,991,811.85
  5. Step 5: Solve for x
    x = 68,991,811.85/9,207.18
  6. Step 6: Final answer
    x = 7,493.26

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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.