Home / 15,630.27-21,569.81-8,557.15

Finding the Fourth Proportional to 15,630.27, 21,569.81 and 8,557.15

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Solution

The fourth proportional to 15,630.27, 21,569.81 and 8,557.15 is: 11,808.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,630.27 : 21,569.81 = 8,557.15 : x
  2. Step 2: Convert to fraction form
    15,630.27/21,569.81 = 8,557.15/x
  3. Step 3: Cross multiply
    15,630.27x = 21,569.81 × 8,557.15
  4. Step 4: Simplify right side
    15,630.27x = 184,576,099.64
  5. Step 5: Solve for x
    x = 184,576,099.64/15,630.27
  6. Step 6: Final answer
    x = 11,808.89

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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.