Home / 13,549.03-18,698.40-7,580.68

Finding the Fourth Proportional to 13,549.03, 18,698.40 and 7,580.68

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Solution

The fourth proportional to 13,549.03, 18,698.40 and 7,580.68 is: 10,461.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,549.03 : 18,698.40 = 7,580.68 : x
  2. Step 2: Convert to fraction form
    13,549.03/18,698.40 = 7,580.68/x
  3. Step 3: Cross multiply
    13,549.03x = 18,698.40 × 7,580.68
  4. Step 4: Simplify right side
    13,549.03x = 141,746,586.91
  5. Step 5: Solve for x
    x = 141,746,586.91/13,549.03
  6. Step 6: Final answer
    x = 10,461.75

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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.