Home / 15,703.04-21,671.08-8,630.94

Finding the Fourth Proportional to 15,703.04, 21,671.08 and 8,630.94

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Solution

The fourth proportional to 15,703.04, 21,671.08 and 8,630.94 is: 11,911.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,703.04 : 21,671.08 = 8,630.94 : x
  2. Step 2: Convert to fraction form
    15,703.04/21,671.08 = 8,630.94/x
  3. Step 3: Cross multiply
    15,703.04x = 21,671.08 × 8,630.94
  4. Step 4: Simplify right side
    15,703.04x = 187,041,791.22
  5. Step 5: Solve for x
    x = 187,041,791.22/15,703.04
  6. Step 6: Final answer
    x = 11,911.18

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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.