Home / 10,718.60-16,077.90-7,219.40

Finding the Fourth Proportional to 10,718.60, 16,077.90 and 7,219.40

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Solution

The fourth proportional to 10,718.60, 16,077.90 and 7,219.40 is: 10,829.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,718.60 : 16,077.90 = 7,219.40 : x
  2. Step 2: Convert to fraction form
    10,718.60/16,077.90 = 7,219.40/x
  3. Step 3: Cross multiply
    10,718.60x = 16,077.90 × 7,219.40
  4. Step 4: Simplify right side
    10,718.60x = 116,072,791.26
  5. Step 5: Solve for x
    x = 116,072,791.26/10,718.60
  6. Step 6: Final answer
    x = 10,829.10

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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.