Home / 15,703.56-21,671.31-8,630.16

Finding the Fourth Proportional to 15,703.56, 21,671.31 and 8,630.16

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Solution

The fourth proportional to 15,703.56, 21,671.31 and 8,630.16 is: 11,909.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,703.56 : 21,671.31 = 8,630.16 : x
  2. Step 2: Convert to fraction form
    15,703.56/21,671.31 = 8,630.16/x
  3. Step 3: Cross multiply
    15,703.56x = 21,671.31 × 8,630.16
  4. Step 4: Simplify right side
    15,703.56x = 187,026,872.71
  5. Step 5: Solve for x
    x = 187,026,872.71/15,703.56
  6. Step 6: Final answer
    x = 11,909.84

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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.