Home / 14,158.90-21,320.66-10,487.14

Finding the Fourth Proportional to 14,158.90, 21,320.66 and 10,487.14

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Solution

The fourth proportional to 14,158.90, 21,320.66 and 10,487.14 is: 15,791.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,158.90 : 21,320.66 = 10,487.14 : x
  2. Step 2: Convert to fraction form
    14,158.90/21,320.66 = 10,487.14/x
  3. Step 3: Cross multiply
    14,158.90x = 21,320.66 × 10,487.14
  4. Step 4: Simplify right side
    14,158.90x = 223,592,746.31
  5. Step 5: Solve for x
    x = 223,592,746.31/14,158.90
  6. Step 6: Final answer
    x = 15,791.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.