Home / 14,055.61-19,397.96-7,769.20

Finding the Fourth Proportional to 14,055.61, 19,397.96 and 7,769.20

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Solution

The fourth proportional to 14,055.61, 19,397.96 and 7,769.20 is: 10,722.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,055.61 : 19,397.96 = 7,769.20 : x
  2. Step 2: Convert to fraction form
    14,055.61/19,397.96 = 7,769.20/x
  3. Step 3: Cross multiply
    14,055.61x = 19,397.96 × 7,769.20
  4. Step 4: Simplify right side
    14,055.61x = 150,706,630.83
  5. Step 5: Solve for x
    x = 150,706,630.83/14,055.61
  6. Step 6: Final answer
    x = 10,722.17

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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.