Home / 17,516.64-26,258.55-6,420.35

Finding the Fourth Proportional to 17,516.64, 26,258.55 and 6,420.35

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Solution

The fourth proportional to 17,516.64, 26,258.55 and 6,420.35 is: 9,624.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,516.64 : 26,258.55 = 6,420.35 : x
  2. Step 2: Convert to fraction form
    17,516.64/26,258.55 = 6,420.35/x
  3. Step 3: Cross multiply
    17,516.64x = 26,258.55 × 6,420.35
  4. Step 4: Simplify right side
    17,516.64x = 168,588,950.20
  5. Step 5: Solve for x
    x = 168,588,950.20/17,516.64
  6. Step 6: Final answer
    x = 9,624.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.