Home / 13,505.74-18,637.76-7,456.01

Finding the Fourth Proportional to 13,505.74, 18,637.76 and 7,456.01

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Solution

The fourth proportional to 13,505.74, 18,637.76 and 7,456.01 is: 10,289.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,505.74 : 18,637.76 = 7,456.01 : x
  2. Step 2: Convert to fraction form
    13,505.74/18,637.76 = 7,456.01/x
  3. Step 3: Cross multiply
    13,505.74x = 18,637.76 × 7,456.01
  4. Step 4: Simplify right side
    13,505.74x = 138,963,250.39
  5. Step 5: Solve for x
    x = 138,963,250.39/13,505.74
  6. Step 6: Final answer
    x = 10,289.20

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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.