Home / 15,630.73-21,570.42-8,557.19

Finding the Fourth Proportional to 15,630.73, 21,570.42 and 8,557.19

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Solution

The fourth proportional to 15,630.73, 21,570.42 and 8,557.19 is: 11,808.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,630.73 : 21,570.42 = 8,557.19 : x
  2. Step 2: Convert to fraction form
    15,630.73/21,570.42 = 8,557.19/x
  3. Step 3: Cross multiply
    15,630.73x = 21,570.42 × 8,557.19
  4. Step 4: Simplify right side
    15,630.73x = 184,582,182.32
  5. Step 5: Solve for x
    x = 184,582,182.32/15,630.73
  6. Step 6: Final answer
    x = 11,808.93

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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.