Home / 13,239.64-18,264.72-10,590.76

Finding the Fourth Proportional to 13,239.64, 18,264.72 and 10,590.76

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Solution

The fourth proportional to 13,239.64, 18,264.72 and 10,590.76 is: 14,610.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,239.64 : 18,264.72 = 10,590.76 : x
  2. Step 2: Convert to fraction form
    13,239.64/18,264.72 = 10,590.76/x
  3. Step 3: Cross multiply
    13,239.64x = 18,264.72 × 10,590.76
  4. Step 4: Simplify right side
    13,239.64x = 193,437,265.99
  5. Step 5: Solve for x
    x = 193,437,265.99/13,239.64
  6. Step 6: Final answer
    x = 14,610.46

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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.