Home / 10,916.90-15,066.50-6,938.07

Finding the Fourth Proportional to 10,916.90, 15,066.50 and 6,938.07

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Solution

The fourth proportional to 10,916.90, 15,066.50 and 6,938.07 is: 9,575.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,916.90 : 15,066.50 = 6,938.07 : x
  2. Step 2: Convert to fraction form
    10,916.90/15,066.50 = 6,938.07/x
  3. Step 3: Cross multiply
    10,916.90x = 15,066.50 × 6,938.07
  4. Step 4: Simplify right side
    10,916.90x = 104,532,396.96
  5. Step 5: Solve for x
    x = 104,532,396.96/10,916.90
  6. Step 6: Final answer
    x = 9,575.29

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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.