Home / 12,946.36-17,865.56-7,281.32

Finding the Fourth Proportional to 12,946.36, 17,865.56 and 7,281.32

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Solution

The fourth proportional to 12,946.36, 17,865.56 and 7,281.32 is: 10,047.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,946.36 : 17,865.56 = 7,281.32 : x
  2. Step 2: Convert to fraction form
    12,946.36/17,865.56 = 7,281.32/x
  3. Step 3: Cross multiply
    12,946.36x = 17,865.56 × 7,281.32
  4. Step 4: Simplify right side
    12,946.36x = 130,084,859.34
  5. Step 5: Solve for x
    x = 130,084,859.34/12,946.36
  6. Step 6: Final answer
    x = 10,047.99

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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.