Home / 13,798.40-19,020.65-10,808.91

Finding the Fourth Proportional to 13,798.40, 19,020.65 and 10,808.91

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Solution

The fourth proportional to 13,798.40, 19,020.65 and 10,808.91 is: 14,899.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,798.40 : 19,020.65 = 10,808.91 : x
  2. Step 2: Convert to fraction form
    13,798.40/19,020.65 = 10,808.91/x
  3. Step 3: Cross multiply
    13,798.40x = 19,020.65 × 10,808.91
  4. Step 4: Simplify right side
    13,798.40x = 205,592,439.95
  5. Step 5: Solve for x
    x = 205,592,439.95/13,798.40
  6. Step 6: Final answer
    x = 14,899.74

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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.