Home / 15,477.93-21,358.96-8,762.22

Finding the Fourth Proportional to 15,477.93, 21,358.96 and 8,762.22

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Solution

The fourth proportional to 15,477.93, 21,358.96 and 8,762.22 is: 12,091.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,477.93 : 21,358.96 = 8,762.22 : x
  2. Step 2: Convert to fraction form
    15,477.93/21,358.96 = 8,762.22/x
  3. Step 3: Cross multiply
    15,477.93x = 21,358.96 × 8,762.22
  4. Step 4: Simplify right side
    15,477.93x = 187,151,884.59
  5. Step 5: Solve for x
    x = 187,151,884.59/15,477.93
  6. Step 6: Final answer
    x = 12,091.53

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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.