Home / 15,491.12-21,381.08-9,527.84

Finding the Fourth Proportional to 15,491.12, 21,381.08 and 9,527.84

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Solution

The fourth proportional to 15,491.12, 21,381.08 and 9,527.84 is: 13,150.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,491.12 : 21,381.08 = 9,527.84 : x
  2. Step 2: Convert to fraction form
    15,491.12/21,381.08 = 9,527.84/x
  3. Step 3: Cross multiply
    15,491.12x = 21,381.08 × 9,527.84
  4. Step 4: Simplify right side
    15,491.12x = 203,715,509.27
  5. Step 5: Solve for x
    x = 203,715,509.27/15,491.12
  6. Step 6: Final answer
    x = 13,150.47

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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.