Home / 19,864.51-29,771.43-9,311.25

Finding the Fourth Proportional to 19,864.51, 29,771.43 and 9,311.25

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Solution

The fourth proportional to 19,864.51, 29,771.43 and 9,311.25 is: 13,955.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,864.51 : 29,771.43 = 9,311.25 : x
  2. Step 2: Convert to fraction form
    19,864.51/29,771.43 = 9,311.25/x
  3. Step 3: Cross multiply
    19,864.51x = 29,771.43 × 9,311.25
  4. Step 4: Simplify right side
    19,864.51x = 277,209,227.59
  5. Step 5: Solve for x
    x = 277,209,227.59/19,864.51
  6. Step 6: Final answer
    x = 13,955.00

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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.