Home / 19,555.63-26,986.57-10,602.90

Finding the Fourth Proportional to 19,555.63, 26,986.57 and 10,602.90

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Solution

The fourth proportional to 19,555.63, 26,986.57 and 10,602.90 is: 14,631.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,555.63 : 26,986.57 = 10,602.90 : x
  2. Step 2: Convert to fraction form
    19,555.63/26,986.57 = 10,602.90/x
  3. Step 3: Cross multiply
    19,555.63x = 26,986.57 × 10,602.90
  4. Step 4: Simplify right side
    19,555.63x = 286,135,876.55
  5. Step 5: Solve for x
    x = 286,135,876.55/19,555.63
  6. Step 6: Final answer
    x = 14,631.89

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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.