Home / 10,925.40-16,389.90-3,531.72

Finding the Fourth Proportional to 10,925.40, 16,389.90 and 3,531.72

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Solution

The fourth proportional to 10,925.40, 16,389.90 and 3,531.72 is: 5,298.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,925.40 : 16,389.90 = 3,531.72 : x
  2. Step 2: Convert to fraction form
    10,925.40/16,389.90 = 3,531.72/x
  3. Step 3: Cross multiply
    10,925.40x = 16,389.90 × 3,531.72
  4. Step 4: Simplify right side
    10,925.40x = 57,884,537.63
  5. Step 5: Solve for x
    x = 57,884,537.63/10,925.40
  6. Step 6: Final answer
    x = 5,298.16

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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.