Home / 13,258.35-19,886.31-6,688.98

Finding the Fourth Proportional to 13,258.35, 19,886.31 and 6,688.98

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Solution

The fourth proportional to 13,258.35, 19,886.31 and 6,688.98 is: 10,032.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,258.35 : 19,886.31 = 6,688.98 : x
  2. Step 2: Convert to fraction form
    13,258.35/19,886.31 = 6,688.98/x
  3. Step 3: Cross multiply
    13,258.35x = 19,886.31 × 6,688.98
  4. Step 4: Simplify right side
    13,258.35x = 133,019,129.86
  5. Step 5: Solve for x
    x = 133,019,129.86/13,258.35
  6. Step 6: Final answer
    x = 10,032.86

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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.