Home / 13,470.96-18,588.60-7,502.40

Finding the Fourth Proportional to 13,470.96, 18,588.60 and 7,502.40

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Solution

The fourth proportional to 13,470.96, 18,588.60 and 7,502.40 is: 10,352.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,470.96 : 18,588.60 = 7,502.40 : x
  2. Step 2: Convert to fraction form
    13,470.96/18,588.60 = 7,502.40/x
  3. Step 3: Cross multiply
    13,470.96x = 18,588.60 × 7,502.40
  4. Step 4: Simplify right side
    13,470.96x = 139,459,112.64
  5. Step 5: Solve for x
    x = 139,459,112.64/13,470.96
  6. Step 6: Final answer
    x = 10,352.57

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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.