Home / 13,487.04-18,610.90-7,518.56

Finding the Fourth Proportional to 13,487.04, 18,610.90 and 7,518.56

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Solution

The fourth proportional to 13,487.04, 18,610.90 and 7,518.56 is: 10,374.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,487.04 : 18,610.90 = 7,518.56 : x
  2. Step 2: Convert to fraction form
    13,487.04/18,610.90 = 7,518.56/x
  3. Step 3: Cross multiply
    13,487.04x = 18,610.90 × 7,518.56
  4. Step 4: Simplify right side
    13,487.04x = 139,927,056.45
  5. Step 5: Solve for x
    x = 139,927,056.45/13,487.04
  6. Step 6: Final answer
    x = 10,374.93

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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.