Home / 15,334.48-21,160.86-9,376.12

Finding the Fourth Proportional to 15,334.48, 21,160.86 and 9,376.12

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Solution

The fourth proportional to 15,334.48, 21,160.86 and 9,376.12 is: 12,938.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,334.48 : 21,160.86 = 9,376.12 : x
  2. Step 2: Convert to fraction form
    15,334.48/21,160.86 = 9,376.12/x
  3. Step 3: Cross multiply
    15,334.48x = 21,160.86 × 9,376.12
  4. Step 4: Simplify right side
    15,334.48x = 198,406,762.66
  5. Step 5: Solve for x
    x = 198,406,762.66/15,334.48
  6. Step 6: Final answer
    x = 12,938.60

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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.