Home / 15,526.71-21,426.29-8,452.99

Finding the Fourth Proportional to 15,526.71, 21,426.29 and 8,452.99

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Solution

The fourth proportional to 15,526.71, 21,426.29 and 8,452.99 is: 11,664.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,526.71 : 21,426.29 = 8,452.99 : x
  2. Step 2: Convert to fraction form
    15,526.71/21,426.29 = 8,452.99/x
  3. Step 3: Cross multiply
    15,526.71x = 21,426.29 × 8,452.99
  4. Step 4: Simplify right side
    15,526.71x = 181,116,172.84
  5. Step 5: Solve for x
    x = 181,116,172.84/15,526.71
  6. Step 6: Final answer
    x = 11,664.81

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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.