Home / 13,237.81-18,267.47-7,572.67

Finding the Fourth Proportional to 13,237.81, 18,267.47 and 7,572.67

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Solution

The fourth proportional to 13,237.81, 18,267.47 and 7,572.67 is: 10,449.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,237.81 : 18,267.47 = 7,572.67 : x
  2. Step 2: Convert to fraction form
    13,237.81/18,267.47 = 7,572.67/x
  3. Step 3: Cross multiply
    13,237.81x = 18,267.47 × 7,572.67
  4. Step 4: Simplify right side
    13,237.81x = 138,333,484.18
  5. Step 5: Solve for x
    x = 138,333,484.18/13,237.81
  6. Step 6: Final answer
    x = 10,449.88

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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.