Home / 15,527.35-21,430.54-9,153.57

Finding the Fourth Proportional to 15,527.35, 21,430.54 and 9,153.57

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Solution

The fourth proportional to 15,527.35, 21,430.54 and 9,153.57 is: 12,633.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,527.35 : 21,430.54 = 9,153.57 : x
  2. Step 2: Convert to fraction form
    15,527.35/21,430.54 = 9,153.57/x
  3. Step 3: Cross multiply
    15,527.35x = 21,430.54 × 9,153.57
  4. Step 4: Simplify right side
    15,527.35x = 196,165,948.03
  5. Step 5: Solve for x
    x = 196,165,948.03/15,527.35
  6. Step 6: Final answer
    x = 12,633.58

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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.