Home / 14,253.92-19,670.28-7,880.60

Finding the Fourth Proportional to 14,253.92, 19,670.28 and 7,880.60

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Solution

The fourth proportional to 14,253.92, 19,670.28 and 7,880.60 is: 10,875.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,253.92 : 19,670.28 = 7,880.60 : x
  2. Step 2: Convert to fraction form
    14,253.92/19,670.28 = 7,880.60/x
  3. Step 3: Cross multiply
    14,253.92x = 19,670.28 × 7,880.60
  4. Step 4: Simplify right side
    14,253.92x = 155,013,608.57
  5. Step 5: Solve for x
    x = 155,013,608.57/14,253.92
  6. Step 6: Final answer
    x = 10,875.16

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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.