Home / 13,588.85-18,746.21-9,612.15

Finding the Fourth Proportional to 13,588.85, 18,746.21 and 9,612.15

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Solution

The fourth proportional to 13,588.85, 18,746.21 and 9,612.15 is: 13,260.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,588.85 : 18,746.21 = 9,612.15 : x
  2. Step 2: Convert to fraction form
    13,588.85/18,746.21 = 9,612.15/x
  3. Step 3: Cross multiply
    13,588.85x = 18,746.21 × 9,612.15
  4. Step 4: Simplify right side
    13,588.85x = 180,191,334.39
  5. Step 5: Solve for x
    x = 180,191,334.39/13,588.85
  6. Step 6: Final answer
    x = 13,260.24

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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.