Home / 15,630.99-21,570.82-8,558.07

Finding the Fourth Proportional to 15,630.99, 21,570.82 and 8,558.07

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Solution

The fourth proportional to 15,630.99, 21,570.82 and 8,558.07 is: 11,810.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,630.99 : 21,570.82 = 8,558.07 : x
  2. Step 2: Convert to fraction form
    15,630.99/21,570.82 = 8,558.07/x
  3. Step 3: Cross multiply
    15,630.99x = 21,570.82 × 8,558.07
  4. Step 4: Simplify right side
    15,630.99x = 184,604,501.06
  5. Step 5: Solve for x
    x = 184,604,501.06/15,630.99
  6. Step 6: Final answer
    x = 11,810.16

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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.