Home / 10,671.36-15,985.28-8,704

Finding the Fourth Proportional to 10,671.36, 15,985.28 and 8,704

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Solution

The fourth proportional to 10,671.36, 15,985.28 and 8,704 is: 13,038.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,671.36 : 15,985.28 = 8,704 : x
  2. Step 2: Convert to fraction form
    10,671.36/15,985.28 = 8,704/x
  3. Step 3: Cross multiply
    10,671.36x = 15,985.28 × 8,704
  4. Step 4: Simplify right side
    10,671.36x = 139,135,877.12
  5. Step 5: Solve for x
    x = 139,135,877.12/10,671.36
  6. Step 6: Final answer
    x = 13,038.25

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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.