Home / 19,557.72-26,989.40-10,605.20

Finding the Fourth Proportional to 19,557.72, 26,989.40 and 10,605.20

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Solution

The fourth proportional to 19,557.72, 26,989.40 and 10,605.20 is: 14,635.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,557.72 : 26,989.40 = 10,605.20 : x
  2. Step 2: Convert to fraction form
    19,557.72/26,989.40 = 10,605.20/x
  3. Step 3: Cross multiply
    19,557.72x = 26,989.40 × 10,605.20
  4. Step 4: Simplify right side
    19,557.72x = 286,227,876.45
  5. Step 5: Solve for x
    x = 286,227,876.45/19,557.72
  6. Step 6: Final answer
    x = 14,635.03

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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.