Home / 11,312.13-16,969.35-3,916.58

Finding the Fourth Proportional to 11,312.13, 16,969.35 and 3,916.58

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Solution

The fourth proportional to 11,312.13, 16,969.35 and 3,916.58 is: 5,875.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,312.13 : 16,969.35 = 3,916.58 : x
  2. Step 2: Convert to fraction form
    11,312.13/16,969.35 = 3,916.58/x
  3. Step 3: Cross multiply
    11,312.13x = 16,969.35 × 3,916.58
  4. Step 4: Simplify right side
    11,312.13x = 66,461,731.98
  5. Step 5: Solve for x
    x = 66,461,731.98/11,312.13
  6. Step 6: Final answer
    x = 5,875.26

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1.5x scale

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.