Home / 15,559.56-21,466.08-9,580.86

Finding the Fourth Proportional to 15,559.56, 21,466.08 and 9,580.86

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Solution

The fourth proportional to 15,559.56, 21,466.08 and 9,580.86 is: 13,217.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,559.56 : 21,466.08 = 9,580.86 : x
  2. Step 2: Convert to fraction form
    15,559.56/21,466.08 = 9,580.86/x
  3. Step 3: Cross multiply
    15,559.56x = 21,466.08 × 9,580.86
  4. Step 4: Simplify right side
    15,559.56x = 205,663,507.23
  5. Step 5: Solve for x
    x = 205,663,507.23/15,559.56
  6. Step 6: Final answer
    x = 13,217.82

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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.