Home / 14,009.10-19,332.39-7,721.34

Finding the Fourth Proportional to 14,009.10, 19,332.39 and 7,721.34

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Solution

The fourth proportional to 14,009.10, 19,332.39 and 7,721.34 is: 10,655.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,009.10 : 19,332.39 = 7,721.34 : x
  2. Step 2: Convert to fraction form
    14,009.10/19,332.39 = 7,721.34/x
  3. Step 3: Cross multiply
    14,009.10x = 19,332.39 × 7,721.34
  4. Step 4: Simplify right side
    14,009.10x = 149,271,956.20
  5. Step 5: Solve for x
    x = 149,271,956.20/14,009.10
  6. Step 6: Final answer
    x = 10,655.36

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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.