Home / 11,207.12-15,465.60-7,017.68

Finding the Fourth Proportional to 11,207.12, 15,465.60 and 7,017.68

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Solution

The fourth proportional to 11,207.12, 15,465.60 and 7,017.68 is: 9,684.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,207.12 : 15,465.60 = 7,017.68 : x
  2. Step 2: Convert to fraction form
    11,207.12/15,465.60 = 7,017.68/x
  3. Step 3: Cross multiply
    11,207.12x = 15,465.60 × 7,017.68
  4. Step 4: Simplify right side
    11,207.12x = 108,532,631.81
  5. Step 5: Solve for x
    x = 108,532,631.81/11,207.12
  6. Step 6: Final answer
    x = 9,684.26

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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.