Home / 15,309.19-21,125.23-8,593.50

Finding the Fourth Proportional to 15,309.19, 21,125.23 and 8,593.50

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Solution

The fourth proportional to 15,309.19, 21,125.23 and 8,593.50 is: 11,858.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,309.19 : 21,125.23 = 8,593.50 : x
  2. Step 2: Convert to fraction form
    15,309.19/21,125.23 = 8,593.50/x
  3. Step 3: Cross multiply
    15,309.19x = 21,125.23 × 8,593.50
  4. Step 4: Simplify right side
    15,309.19x = 181,539,621.04
  5. Step 5: Solve for x
    x = 181,539,621.04/15,309.19
  6. Step 6: Final answer
    x = 11,858.22

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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.