Home / 14,239.10-19,648.28-7,865.32

Finding the Fourth Proportional to 14,239.10, 19,648.28 and 7,865.32

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Solution

The fourth proportional to 14,239.10, 19,648.28 and 7,865.32 is: 10,853.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,239.10 : 19,648.28 = 7,865.32 : x
  2. Step 2: Convert to fraction form
    14,239.10/19,648.28 = 7,865.32/x
  3. Step 3: Cross multiply
    14,239.10x = 19,648.28 × 7,865.32
  4. Step 4: Simplify right side
    14,239.10x = 154,540,009.65
  5. Step 5: Solve for x
    x = 154,540,009.65/14,239.10
  6. Step 6: Final answer
    x = 10,853.21

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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.