Home / 10,916.10-15,066.54-6,438.18

Finding the Fourth Proportional to 10,916.10, 15,066.54 and 6,438.18

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Solution

The fourth proportional to 10,916.10, 15,066.54 and 6,438.18 is: 8,886.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,916.10 : 15,066.54 = 6,438.18 : x
  2. Step 2: Convert to fraction form
    10,916.10/15,066.54 = 6,438.18/x
  3. Step 3: Cross multiply
    10,916.10x = 15,066.54 × 6,438.18
  4. Step 4: Simplify right side
    10,916.10x = 97,001,096.50
  5. Step 5: Solve for x
    x = 97,001,096.50/10,916.10
  6. Step 6: Final answer
    x = 8,886.06

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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.