Home / 15,615.96-21,552.48-9,953.22

Finding the Fourth Proportional to 15,615.96, 21,552.48 and 9,953.22

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Solution

The fourth proportional to 15,615.96, 21,552.48 and 9,953.22 is: 13,737.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,615.96 : 21,552.48 = 9,953.22 : x
  2. Step 2: Convert to fraction form
    15,615.96/21,552.48 = 9,953.22/x
  3. Step 3: Cross multiply
    15,615.96x = 21,552.48 × 9,953.22
  4. Step 4: Simplify right side
    15,615.96x = 214,516,574.99
  5. Step 5: Solve for x
    x = 214,516,574.99/15,615.96
  6. Step 6: Final answer
    x = 13,737.01

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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.