Home / 19,476.80-29,222.40-7,798.40

Finding the Fourth Proportional to 19,476.80, 29,222.40 and 7,798.40

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Solution

The fourth proportional to 19,476.80, 29,222.40 and 7,798.40 is: 11,700.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,476.80 : 29,222.40 = 7,798.40 : x
  2. Step 2: Convert to fraction form
    19,476.80/29,222.40 = 7,798.40/x
  3. Step 3: Cross multiply
    19,476.80x = 29,222.40 × 7,798.40
  4. Step 4: Simplify right side
    19,476.80x = 227,887,964.16
  5. Step 5: Solve for x
    x = 227,887,964.16/19,476.80
  6. Step 6: Final answer
    x = 11,700.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.