Home / 8,434.04-11,638.95-4,657.21

Finding the Fourth Proportional to 8,434.04, 11,638.95 and 4,657.21

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Solution

The fourth proportional to 8,434.04, 11,638.95 and 4,657.21 is: 6,426.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,434.04 : 11,638.95 = 4,657.21 : x
  2. Step 2: Convert to fraction form
    8,434.04/11,638.95 = 4,657.21/x
  3. Step 3: Cross multiply
    8,434.04x = 11,638.95 × 4,657.21
  4. Step 4: Simplify right side
    8,434.04x = 54,205,034.33
  5. Step 5: Solve for x
    x = 54,205,034.33/8,434.04
  6. Step 6: Final answer
    x = 6,426.94

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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.