Home / 10,916.04-15,078.06-8,088.60

Finding the Fourth Proportional to 10,916.04, 15,078.06 and 8,088.60

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Solution

The fourth proportional to 10,916.04, 15,078.06 and 8,088.60 is: 11,172.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,916.04 : 15,078.06 = 8,088.60 : x
  2. Step 2: Convert to fraction form
    10,916.04/15,078.06 = 8,088.60/x
  3. Step 3: Cross multiply
    10,916.04x = 15,078.06 × 8,088.60
  4. Step 4: Simplify right side
    10,916.04x = 121,960,396.12
  5. Step 5: Solve for x
    x = 121,960,396.12/10,916.04
  6. Step 6: Final answer
    x = 11,172.59

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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.