Home / 10,160.90-14,030.68-6,390.36

Finding the Fourth Proportional to 10,160.90, 14,030.68 and 6,390.36

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Solution

The fourth proportional to 10,160.90, 14,030.68 and 6,390.36 is: 8,824.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,160.90 : 14,030.68 = 6,390.36 : x
  2. Step 2: Convert to fraction form
    10,160.90/14,030.68 = 6,390.36/x
  3. Step 3: Cross multiply
    10,160.90x = 14,030.68 × 6,390.36
  4. Step 4: Simplify right side
    10,160.90x = 89,661,096.24
  5. Step 5: Solve for x
    x = 89,661,096.24/10,160.90
  6. Step 6: Final answer
    x = 8,824.13

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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.