Home / 13,459.79-18,572.65-7,490.63

Finding the Fourth Proportional to 13,459.79, 18,572.65 and 7,490.63

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Solution

The fourth proportional to 13,459.79, 18,572.65 and 7,490.63 is: 10,336.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,459.79 : 18,572.65 = 7,490.63 : x
  2. Step 2: Convert to fraction form
    13,459.79/18,572.65 = 7,490.63/x
  3. Step 3: Cross multiply
    13,459.79x = 18,572.65 × 7,490.63
  4. Step 4: Simplify right side
    13,459.79x = 139,120,876.97
  5. Step 5: Solve for x
    x = 139,120,876.97/13,459.79
  6. Step 6: Final answer
    x = 10,336.03

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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.