Home / 13,558.96-18,711.70-7,590.58

Finding the Fourth Proportional to 13,558.96, 18,711.70 and 7,590.58

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Solution

The fourth proportional to 13,558.96, 18,711.70 and 7,590.58 is: 10,475.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,558.96 : 18,711.70 = 7,590.58 : x
  2. Step 2: Convert to fraction form
    13,558.96/18,711.70 = 7,590.58/x
  3. Step 3: Cross multiply
    13,558.96x = 18,711.70 × 7,590.58
  4. Step 4: Simplify right side
    13,558.96x = 142,032,655.79
  5. Step 5: Solve for x
    x = 142,032,655.79/13,558.96
  6. Step 6: Final answer
    x = 10,475.19

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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.