Home / 10,877.46-15,038.34-8,040.36

Finding the Fourth Proportional to 10,877.46, 15,038.34 and 8,040.36

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Solution

The fourth proportional to 10,877.46, 15,038.34 and 8,040.36 is: 11,115.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,877.46 : 15,038.34 = 8,040.36 : x
  2. Step 2: Convert to fraction form
    10,877.46/15,038.34 = 8,040.36/x
  3. Step 3: Cross multiply
    10,877.46x = 15,038.34 × 8,040.36
  4. Step 4: Simplify right side
    10,877.46x = 120,913,667.40
  5. Step 5: Solve for x
    x = 120,913,667.40/10,877.46
  6. Step 6: Final answer
    x = 11,115.98

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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.