Home / 13,988.90-19,306.08-10,445.96

Finding the Fourth Proportional to 13,988.90, 19,306.08 and 10,445.96

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Solution

The fourth proportional to 13,988.90, 19,306.08 and 10,445.96 is: 14,416.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,988.90 : 19,306.08 = 10,445.96 : x
  2. Step 2: Convert to fraction form
    13,988.90/19,306.08 = 10,445.96/x
  3. Step 3: Cross multiply
    13,988.90x = 19,306.08 × 10,445.96
  4. Step 4: Simplify right side
    13,988.90x = 201,670,587.70
  5. Step 5: Solve for x
    x = 201,670,587.70/13,988.90
  6. Step 6: Final answer
    x = 14,416.47

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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.