Home / 13,558.28-18,710.58-7,590.52

Finding the Fourth Proportional to 13,558.28, 18,710.58 and 7,590.52

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Solution

The fourth proportional to 13,558.28, 18,710.58 and 7,590.52 is: 10,475.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,558.28 : 18,710.58 = 7,590.52 : x
  2. Step 2: Convert to fraction form
    13,558.28/18,710.58 = 7,590.52/x
  3. Step 3: Cross multiply
    13,558.28x = 18,710.58 × 7,590.52
  4. Step 4: Simplify right side
    13,558.28x = 142,023,031.70
  5. Step 5: Solve for x
    x = 142,023,031.70/13,558.28
  6. Step 6: Final answer
    x = 10,475.00

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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.