Home / 15,527.31-21,427.77-8,453.71

Finding the Fourth Proportional to 15,527.31, 21,427.77 and 8,453.71

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Solution

The fourth proportional to 15,527.31, 21,427.77 and 8,453.71 is: 11,666.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,527.31 : 21,427.77 = 8,453.71 : x
  2. Step 2: Convert to fraction form
    15,527.31/21,427.77 = 8,453.71/x
  3. Step 3: Cross multiply
    15,527.31x = 21,427.77 × 8,453.71
  4. Step 4: Simplify right side
    15,527.31x = 181,144,153.53
  5. Step 5: Solve for x
    x = 181,144,153.53/15,527.31
  6. Step 6: Final answer
    x = 11,666.16

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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.