Home / 15,459.28-21,333.69-8,653.31

Finding the Fourth Proportional to 15,459.28, 21,333.69 and 8,653.31

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Solution

The fourth proportional to 15,459.28, 21,333.69 and 8,653.31 is: 11,941.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,459.28 : 21,333.69 = 8,653.31 : x
  2. Step 2: Convert to fraction form
    15,459.28/21,333.69 = 8,653.31/x
  3. Step 3: Cross multiply
    15,459.28x = 21,333.69 × 8,653.31
  4. Step 4: Simplify right side
    15,459.28x = 184,607,033.01
  5. Step 5: Solve for x
    x = 184,607,033.01/15,459.28
  6. Step 6: Final answer
    x = 11,941.50

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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.