Home / 13,415.40-18,493.02-10,577.88

Finding the Fourth Proportional to 13,415.40, 18,493.02 and 10,577.88

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Solution

The fourth proportional to 13,415.40, 18,493.02 and 10,577.88 is: 14,581.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,415.40 : 18,493.02 = 10,577.88 : x
  2. Step 2: Convert to fraction form
    13,415.40/18,493.02 = 10,577.88/x
  3. Step 3: Cross multiply
    13,415.40x = 18,493.02 × 10,577.88
  4. Step 4: Simplify right side
    13,415.40x = 195,616,946.40
  5. Step 5: Solve for x
    x = 195,616,946.40/13,415.40
  6. Step 6: Final answer
    x = 14,581.52

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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.