Home / 13,637.48-18,802.50-8,914.28

Finding the Fourth Proportional to 13,637.48, 18,802.50 and 8,914.28

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Solution

The fourth proportional to 13,637.48, 18,802.50 and 8,914.28 is: 12,290.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,637.48 : 18,802.50 = 8,914.28 : x
  2. Step 2: Convert to fraction form
    13,637.48/18,802.50 = 8,914.28/x
  3. Step 3: Cross multiply
    13,637.48x = 18,802.50 × 8,914.28
  4. Step 4: Simplify right side
    13,637.48x = 167,610,749.70
  5. Step 5: Solve for x
    x = 167,610,749.70/13,637.48
  6. Step 6: Final answer
    x = 12,290.45

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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.