Home / 8,315.07-11,476.77-4,780.34

Finding the Fourth Proportional to 8,315.07, 11,476.77 and 4,780.34

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Solution

The fourth proportional to 8,315.07, 11,476.77 and 4,780.34 is: 6,598.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,315.07 : 11,476.77 = 4,780.34 : x
  2. Step 2: Convert to fraction form
    8,315.07/11,476.77 = 4,780.34/x
  3. Step 3: Cross multiply
    8,315.07x = 11,476.77 × 4,780.34
  4. Step 4: Simplify right side
    8,315.07x = 54,862,862.70
  5. Step 5: Solve for x
    x = 54,862,862.70/8,315.07
  6. Step 6: Final answer
    x = 6,598.00

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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.