Home / 14,117.92-19,482.84-7,830.28

Finding the Fourth Proportional to 14,117.92, 19,482.84 and 7,830.28

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Solution

The fourth proportional to 14,117.92, 19,482.84 and 7,830.28 is: 10,805.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,117.92 : 19,482.84 = 7,830.28 : x
  2. Step 2: Convert to fraction form
    14,117.92/19,482.84 = 7,830.28/x
  3. Step 3: Cross multiply
    14,117.92x = 19,482.84 × 7,830.28
  4. Step 4: Simplify right side
    14,117.92x = 152,556,092.40
  5. Step 5: Solve for x
    x = 152,556,092.40/14,117.92
  6. Step 6: Final answer
    x = 10,805.85

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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.