Home / 12,946.23-17,865.36-7,281.09

Finding the Fourth Proportional to 12,946.23, 17,865.36 and 7,281.09

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Solution

The fourth proportional to 12,946.23, 17,865.36 and 7,281.09 is: 10,047.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,946.23 : 17,865.36 = 7,281.09 : x
  2. Step 2: Convert to fraction form
    12,946.23/17,865.36 = 7,281.09/x
  3. Step 3: Cross multiply
    12,946.23x = 17,865.36 × 7,281.09
  4. Step 4: Simplify right side
    12,946.23x = 130,079,294.04
  5. Step 5: Solve for x
    x = 130,079,294.04/12,946.23
  6. Step 6: Final answer
    x = 10,047.66

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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.