Home / 13,351.29-20,038.81-7,116.45

Finding the Fourth Proportional to 13,351.29, 20,038.81 and 7,116.45

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Solution

The fourth proportional to 13,351.29, 20,038.81 and 7,116.45 is: 10,681.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,351.29 : 20,038.81 = 7,116.45 : x
  2. Step 2: Convert to fraction form
    13,351.29/20,038.81 = 7,116.45/x
  3. Step 3: Cross multiply
    13,351.29x = 20,038.81 × 7,116.45
  4. Step 4: Simplify right side
    13,351.29x = 142,605,148.22
  5. Step 5: Solve for x
    x = 142,605,148.22/13,351.29
  6. Step 6: Final answer
    x = 10,681.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.