Home / 13,488.66-18,623-8,710.74

Finding the Fourth Proportional to 13,488.66, 18,623 and 8,710.74

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Solution

The fourth proportional to 13,488.66, 18,623 and 8,710.74 is: 12,026.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,488.66 : 18,623 = 8,710.74 : x
  2. Step 2: Convert to fraction form
    13,488.66/18,623 = 8,710.74/x
  3. Step 3: Cross multiply
    13,488.66x = 18,623 × 8,710.74
  4. Step 4: Simplify right side
    13,488.66x = 162,220,111.02
  5. Step 5: Solve for x
    x = 162,220,111.02/13,488.66
  6. Step 6: Final answer
    x = 12,026.41

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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.