Home / 15,454.63-21,328.46-8,737.84

Finding the Fourth Proportional to 15,454.63, 21,328.46 and 8,737.84

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Solution

The fourth proportional to 15,454.63, 21,328.46 and 8,737.84 is: 12,058.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,454.63 : 21,328.46 = 8,737.84 : x
  2. Step 2: Convert to fraction form
    15,454.63/21,328.46 = 8,737.84/x
  3. Step 3: Cross multiply
    15,454.63x = 21,328.46 × 8,737.84
  4. Step 4: Simplify right side
    15,454.63x = 186,364,670.93
  5. Step 5: Solve for x
    x = 186,364,670.93/15,454.63
  6. Step 6: Final answer
    x = 12,058.82

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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.