Home / 12,946.04-17,865.90-7,280.81

Finding the Fourth Proportional to 12,946.04, 17,865.90 and 7,280.81

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Solution

The fourth proportional to 12,946.04, 17,865.90 and 7,280.81 is: 10,047.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,946.04 : 17,865.90 = 7,280.81 : x
  2. Step 2: Convert to fraction form
    12,946.04/17,865.90 = 7,280.81/x
  3. Step 3: Cross multiply
    12,946.04x = 17,865.90 × 7,280.81
  4. Step 4: Simplify right side
    12,946.04x = 130,078,134.05
  5. Step 5: Solve for x
    x = 130,078,134.05/12,946.04
  6. Step 6: Final answer
    x = 10,047.72

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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.