Home / 10,258.29-14,159.90-6,380.72

Finding the Fourth Proportional to 10,258.29, 14,159.90 and 6,380.72

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Solution

The fourth proportional to 10,258.29, 14,159.90 and 6,380.72 is: 8,807.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,258.29 : 14,159.90 = 6,380.72 : x
  2. Step 2: Convert to fraction form
    10,258.29/14,159.90 = 6,380.72/x
  3. Step 3: Cross multiply
    10,258.29x = 14,159.90 × 6,380.72
  4. Step 4: Simplify right side
    10,258.29x = 90,350,302.28
  5. Step 5: Solve for x
    x = 90,350,302.28/10,258.29
  6. Step 6: Final answer
    x = 8,807.54

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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.