Home / 15,436.96-21,302.88-9,152.32

Finding the Fourth Proportional to 15,436.96, 21,302.88 and 9,152.32

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Solution

The fourth proportional to 15,436.96, 21,302.88 and 9,152.32 is: 12,630.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,436.96 : 21,302.88 = 9,152.32 : x
  2. Step 2: Convert to fraction form
    15,436.96/21,302.88 = 9,152.32/x
  3. Step 3: Cross multiply
    15,436.96x = 21,302.88 × 9,152.32
  4. Step 4: Simplify right side
    15,436.96x = 194,970,774.68
  5. Step 5: Solve for x
    x = 194,970,774.68/15,436.96
  6. Step 6: Final answer
    x = 12,630.13

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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.