Home / 10,316.70-14,242.23-8,631.90

Finding the Fourth Proportional to 10,316.70, 14,242.23 and 8,631.90

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Solution

The fourth proportional to 10,316.70, 14,242.23 and 8,631.90 is: 11,916.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,316.70 : 14,242.23 = 8,631.90 : x
  2. Step 2: Convert to fraction form
    10,316.70/14,242.23 = 8,631.90/x
  3. Step 3: Cross multiply
    10,316.70x = 14,242.23 × 8,631.90
  4. Step 4: Simplify right side
    10,316.70x = 122,937,505.14
  5. Step 5: Solve for x
    x = 122,937,505.14/10,316.70
  6. Step 6: Final answer
    x = 11,916.36

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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.