Home / 10,426.15-14,390.31-6,648.40

Finding the Fourth Proportional to 10,426.15, 14,390.31 and 6,648.40

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Solution

The fourth proportional to 10,426.15, 14,390.31 and 6,648.40 is: 9,176.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,426.15 : 14,390.31 = 6,648.40 : x
  2. Step 2: Convert to fraction form
    10,426.15/14,390.31 = 6,648.40/x
  3. Step 3: Cross multiply
    10,426.15x = 14,390.31 × 6,648.40
  4. Step 4: Simplify right side
    10,426.15x = 95,672,537.00
  5. Step 5: Solve for x
    x = 95,672,537.00/10,426.15
  6. Step 6: Final answer
    x = 9,176.21

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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.