Home / 13,430.34-18,532.71-7,461.90

Finding the Fourth Proportional to 13,430.34, 18,532.71 and 7,461.90

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Solution

The fourth proportional to 13,430.34, 18,532.71 and 7,461.90 is: 10,296.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,430.34 : 18,532.71 = 7,461.90 : x
  2. Step 2: Convert to fraction form
    13,430.34/18,532.71 = 7,461.90/x
  3. Step 3: Cross multiply
    13,430.34x = 18,532.71 × 7,461.90
  4. Step 4: Simplify right side
    13,430.34x = 138,289,228.75
  5. Step 5: Solve for x
    x = 138,289,228.75/13,430.34
  6. Step 6: Final answer
    x = 10,296.78

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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.