Home / 15,527.04-21,427.36-8,453.51

Finding the Fourth Proportional to 15,527.04, 21,427.36 and 8,453.51

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Solution

The fourth proportional to 15,527.04, 21,427.36 and 8,453.51 is: 11,665.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,527.04 : 21,427.36 = 8,453.51 : x
  2. Step 2: Convert to fraction form
    15,527.04/21,427.36 = 8,453.51/x
  3. Step 3: Cross multiply
    15,527.04x = 21,427.36 × 8,453.51
  4. Step 4: Simplify right side
    15,527.04x = 181,136,402.03
  5. Step 5: Solve for x
    x = 181,136,402.03/15,527.04
  6. Step 6: Final answer
    x = 11,665.87

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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.